./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.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_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 16128519e0e6ced40821c523f29c760d3ecfedbe ............................................................................................................................................ 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_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 16128519e0e6ced40821c523f29c760d3ecfedbe ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:05:02,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:02,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:03,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:03,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:03,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:03,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:03,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:03,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:03,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:03,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:03,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:03,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:03,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:03,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:03,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:03,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:03,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:03,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:03,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:03,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:03,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:03,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:03,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:03,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:03,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:03,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:03,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:03,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:03,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:03,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:03,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:03,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:03,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:03,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:03,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:03,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:03,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:03,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:03,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:03,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:03,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:03,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:03,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:03,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:03,188 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:03,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:03,189 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:03,189 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:03,189 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:03,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:03,190 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:03,191 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:03,191 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:03,191 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:03,191 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:03,192 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:03,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:03,193 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:03,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:03,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:03,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:03,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:03,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:03,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:03,194 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:03,194 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:03,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:03,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:03,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:03,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:03,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:03,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:03,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:03,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:03,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:03,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:03,198 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:03,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:03,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:03,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:03,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:03,199 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_230def30-7bd8-4cb3-ace7-d7507da62583/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16128519e0e6ced40821c523f29c760d3ecfedbe [2020-11-22 13:05:03,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:03,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:03,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:03,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:03,481 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:03,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2020-11-22 13:05:03,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data/389b2e6b8/911d8e7c8ad64b57994ad932ebb6a785/FLAG495509b56 [2020-11-22 13:05:04,097 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:04,097 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2020-11-22 13:05:04,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data/389b2e6b8/911d8e7c8ad64b57994ad932ebb6a785/FLAG495509b56 [2020-11-22 13:05:04,429 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data/389b2e6b8/911d8e7c8ad64b57994ad932ebb6a785 [2020-11-22 13:05:04,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:04,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:04,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:04,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:04,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:04,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:04" (1/1) ... [2020-11-22 13:05:04,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b31e3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:04, skipping insertion in model container [2020-11-22 13:05:04,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:04" (1/1) ... [2020-11-22 13:05:04,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:04,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:04,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:04,845 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 13:05:04,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5a45e60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:04, skipping insertion in model container [2020-11-22 13:05:04,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:04,850 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:05:04,853 INFO L168 Benchmark]: Toolchain (without parser) took 418.01 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 72.9 MB in the end (delta: -5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:04,854 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 41.5 MB in the beginning and 41.4 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:04,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.74 ms. Allocated memory is still 98.6 MB. Free memory was 67.1 MB in the beginning and 72.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:04,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 41.5 MB in the beginning and 41.4 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.74 ms. Allocated memory is still 98.6 MB. Free memory was 67.1 MB in the beginning and 72.9 MB in the end (delta: -5.8 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: 581]: 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 13:05:07,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:07,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:07,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:07,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:07,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:07,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:07,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:07,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:07,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:07,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:07,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:07,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:07,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:07,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:07,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:07,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:07,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:07,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:07,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:07,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:07,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:07,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:07,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:07,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:07,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:07,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:07,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:07,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:07,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:07,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:07,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:07,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:07,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:07,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:07,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:07,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:07,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:07,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:07,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:07,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:07,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:05:07,260 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:07,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:07,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:07,261 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:07,261 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:07,261 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:07,261 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:07,262 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:07,262 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:07,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:07,263 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:07,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:07,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:07,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:07,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:07,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:07,264 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:07,264 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:05:07,264 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:05:07,264 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:07,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:07,265 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:07,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:07,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:07,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:05:07,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:07,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:07,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:07,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:07,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:07,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:07,267 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:05:07,267 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:05:07,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:07,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:07,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:07,268 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_230def30-7bd8-4cb3-ace7-d7507da62583/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16128519e0e6ced40821c523f29c760d3ecfedbe [2020-11-22 13:05:07,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:07,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:07,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:07,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:07,661 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:07,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2020-11-22 13:05:07,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data/7e4c6e738/b87cd1c9d36b45c3ba76e5cce540f0bf/FLAGb477052fd [2020-11-22 13:05:08,295 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:08,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2020-11-22 13:05:08,312 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data/7e4c6e738/b87cd1c9d36b45c3ba76e5cce540f0bf/FLAGb477052fd [2020-11-22 13:05:08,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/data/7e4c6e738/b87cd1c9d36b45c3ba76e5cce540f0bf [2020-11-22 13:05:08,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:08,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:08,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:08,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:08,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:08,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:08" (1/1) ... [2020-11-22 13:05:08,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df339dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:08, skipping insertion in model container [2020-11-22 13:05:08,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:08" (1/1) ... [2020-11-22 13:05:08,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:08,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:08,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:08,943 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:05:08,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:09,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:09,083 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:09,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:09,218 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:09,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09 WrapperNode [2020-11-22 13:05:09,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:09,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:09,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:09,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:09,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:09,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:09,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:09,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:09,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... [2020-11-22 13:05:09,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:09,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:09,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:09,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:09,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:05:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:11,718 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:11,719 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-22 13:05:11,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:11 BoogieIcfgContainer [2020-11-22 13:05:11,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:11,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:11,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:11,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:11,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:08" (1/3) ... [2020-11-22 13:05:11,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f97a2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:11, skipping insertion in model container [2020-11-22 13:05:11,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:09" (2/3) ... [2020-11-22 13:05:11,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f97a2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:11, skipping insertion in model container [2020-11-22 13:05:11,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:11" (3/3) ... [2020-11-22 13:05:11,739 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-11-22 13:05:11,763 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:11,767 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:05:11,779 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:05:11,818 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:11,818 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:11,818 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:11,818 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:11,818 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:11,818 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:11,818 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:11,819 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-11-22 13:05:11,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:05:11,849 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:11,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:11,850 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:11,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:11,857 INFO L82 PathProgramCache]: Analyzing trace with hash 349597533, now seen corresponding path program 1 times [2020-11-22 13:05:11,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:11,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337002057] [2020-11-22 13:05:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:12,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:05:12,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:12,195 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 13:05:12,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:12,204 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 13:05:12,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337002057] [2020-11-22 13:05:12,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:12,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:05:12,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027301881] [2020-11-22 13:05:12,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:05:12,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:12,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:05:12,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:12,231 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-11-22 13:05:12,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:12,277 INFO L93 Difference]: Finished difference Result 157 states and 236 transitions. [2020-11-22 13:05:12,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:05:12,280 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 13:05:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:12,299 INFO L225 Difference]: With dead ends: 157 [2020-11-22 13:05:12,299 INFO L226 Difference]: Without dead ends: 76 [2020-11-22 13:05:12,302 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 13:05:12,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-22 13:05:12,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-22 13:05:12,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-22 13:05:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-11-22 13:05:12,345 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-11-22 13:05:12,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:12,345 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-11-22 13:05:12,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:05:12,346 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-11-22 13:05:12,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:05:12,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:12,347 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 13:05:12,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:05:12,548 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:12,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:12,549 INFO L82 PathProgramCache]: Analyzing trace with hash -697159364, now seen corresponding path program 1 times [2020-11-22 13:05:12,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:12,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115306256] [2020-11-22 13:05:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:12,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:05:12,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:12,778 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 13:05:12,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:12,788 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 13:05:12,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115306256] [2020-11-22 13:05:12,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:12,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:05:12,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489217388] [2020-11-22 13:05:12,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:05:12,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:12,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:05:12,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:12,792 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 4 states. [2020-11-22 13:05:12,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:12,805 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-11-22 13:05:12,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:12,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:05:12,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:12,806 INFO L225 Difference]: With dead ends: 76 [2020-11-22 13:05:12,806 INFO L226 Difference]: Without dead ends: 36 [2020-11-22 13:05:12,807 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 13:05:12,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-22 13:05:12,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-22 13:05:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-22 13:05:12,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-11-22 13:05:12,813 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-11-22 13:05:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:12,813 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-11-22 13:05:12,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:05:12,813 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-11-22 13:05:12,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:05:12,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:12,814 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 13:05:13,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:05:13,027 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:13,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:13,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2020-11-22 13:05:13,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:13,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058912311] [2020-11-22 13:05:13,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:13,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:05:13,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:13,224 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 13:05:13,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:13,260 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 13:05:13,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058912311] [2020-11-22 13:05:13,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:13,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:05:13,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120266687] [2020-11-22 13:05:13,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:05:13,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:13,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:05:13,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:13,263 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 4 states. [2020-11-22 13:05:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:13,293 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2020-11-22 13:05:13,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:05:13,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 13:05:13,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:13,297 INFO L225 Difference]: With dead ends: 119 [2020-11-22 13:05:13,297 INFO L226 Difference]: Without dead ends: 89 [2020-11-22 13:05:13,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 13:05:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-22 13:05:13,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2020-11-22 13:05:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-22 13:05:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2020-11-22 13:05:13,318 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2020-11-22 13:05:13,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:13,319 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2020-11-22 13:05:13,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:05:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-11-22 13:05:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-22 13:05:13,321 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:13,321 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 13:05:13,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:05:13,534 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:13,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:13,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2020-11-22 13:05:13,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:13,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853065718] [2020-11-22 13:05:13,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:13,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:05:13,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:13,773 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 13:05:13,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:13,775 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 13:05:13,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853065718] [2020-11-22 13:05:13,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:13,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:05:13,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726200392] [2020-11-22 13:05:13,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:05:13,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:13,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:05:13,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:05:13,778 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2020-11-22 13:05:13,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:13,855 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2020-11-22 13:05:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:13,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-22 13:05:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:13,857 INFO L225 Difference]: With dead ends: 125 [2020-11-22 13:05:13,857 INFO L226 Difference]: Without dead ends: 76 [2020-11-22 13:05:13,858 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 13:05:13,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-22 13:05:13,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-11-22 13:05:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-22 13:05:13,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-11-22 13:05:13,877 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2020-11-22 13:05:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:13,878 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-11-22 13:05:13,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:05:13,878 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-11-22 13:05:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:05:13,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:13,880 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 13:05:14,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:05:14,099 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:14,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:14,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2020-11-22 13:05:14,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:14,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834217695] [2020-11-22 13:05:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:14,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:05:14,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:14,311 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 13:05:14,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:14,325 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 13:05:14,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834217695] [2020-11-22 13:05:14,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:14,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:05:14,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733021633] [2020-11-22 13:05:14,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:05:14,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:14,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:05:14,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:05:14,327 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 5 states. [2020-11-22 13:05:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:14,463 INFO L93 Difference]: Finished difference Result 354 states and 517 transitions. [2020-11-22 13:05:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:05:14,464 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-22 13:05:14,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:14,467 INFO L225 Difference]: With dead ends: 354 [2020-11-22 13:05:14,467 INFO L226 Difference]: Without dead ends: 286 [2020-11-22 13:05:14,469 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 13:05:14,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-22 13:05:14,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 134. [2020-11-22 13:05:14,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-22 13:05:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 188 transitions. [2020-11-22 13:05:14,499 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 188 transitions. Word has length 25 [2020-11-22 13:05:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:14,499 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 188 transitions. [2020-11-22 13:05:14,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:05:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 188 transitions. [2020-11-22 13:05:14,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:05:14,505 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:14,505 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 13:05:14,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:05:14,724 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:14,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:14,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1752651633, now seen corresponding path program 1 times [2020-11-22 13:05:14,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:14,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278140951] [2020-11-22 13:05:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:14,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:05:14,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:14,961 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 13:05:14,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:14,968 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 13:05:14,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278140951] [2020-11-22 13:05:14,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:14,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:05:14,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616179726] [2020-11-22 13:05:14,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:05:14,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:14,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:05:14,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:05:14,974 INFO L87 Difference]: Start difference. First operand 134 states and 188 transitions. Second operand 5 states. [2020-11-22 13:05:15,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:15,203 INFO L93 Difference]: Finished difference Result 368 states and 521 transitions. [2020-11-22 13:05:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:05:15,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-22 13:05:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:15,206 INFO L225 Difference]: With dead ends: 368 [2020-11-22 13:05:15,206 INFO L226 Difference]: Without dead ends: 366 [2020-11-22 13:05:15,207 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 13:05:15,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-11-22 13:05:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 134. [2020-11-22 13:05:15,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-22 13:05:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 186 transitions. [2020-11-22 13:05:15,243 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 186 transitions. Word has length 26 [2020-11-22 13:05:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:15,243 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 186 transitions. [2020-11-22 13:05:15,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:05:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 186 transitions. [2020-11-22 13:05:15,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:05:15,246 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:15,247 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 13:05:15,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:05:15,468 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:15,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:15,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1960990159, now seen corresponding path program 1 times [2020-11-22 13:05:15,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:15,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110060182] [2020-11-22 13:05:15,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:15,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:05:15,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:15,698 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 13:05:15,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:15,710 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 13:05:15,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110060182] [2020-11-22 13:05:15,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:15,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:05:15,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197235127] [2020-11-22 13:05:15,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:05:15,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:15,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:05:15,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:05:15,714 INFO L87 Difference]: Start difference. First operand 134 states and 186 transitions. Second operand 5 states. [2020-11-22 13:05:15,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:15,800 INFO L93 Difference]: Finished difference Result 398 states and 551 transitions. [2020-11-22 13:05:15,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:05:15,800 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:05:15,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:15,802 INFO L225 Difference]: With dead ends: 398 [2020-11-22 13:05:15,803 INFO L226 Difference]: Without dead ends: 270 [2020-11-22 13:05:15,807 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 13:05:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-11-22 13:05:15,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 140. [2020-11-22 13:05:15,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-22 13:05:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 192 transitions. [2020-11-22 13:05:15,832 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 192 transitions. Word has length 30 [2020-11-22 13:05:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:15,834 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 192 transitions. [2020-11-22 13:05:15,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:05:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 192 transitions. [2020-11-22 13:05:15,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:05:15,837 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:15,838 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 13:05:16,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:05:16,056 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:16,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1940950127, now seen corresponding path program 1 times [2020-11-22 13:05:16,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:16,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167585901] [2020-11-22 13:05:16,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:16,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:05:16,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:16,274 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 13:05:16,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:16,293 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 13:05:16,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167585901] [2020-11-22 13:05:16,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:16,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:05:16,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271088447] [2020-11-22 13:05:16,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:05:16,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:16,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:05:16,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:05:16,294 INFO L87 Difference]: Start difference. First operand 140 states and 192 transitions. Second operand 6 states. [2020-11-22 13:05:16,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:16,380 INFO L93 Difference]: Finished difference Result 432 states and 590 transitions. [2020-11-22 13:05:16,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:05:16,381 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-11-22 13:05:16,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:16,383 INFO L225 Difference]: With dead ends: 432 [2020-11-22 13:05:16,383 INFO L226 Difference]: Without dead ends: 298 [2020-11-22 13:05:16,384 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 13:05:16,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-22 13:05:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 144. [2020-11-22 13:05:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-22 13:05:16,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 196 transitions. [2020-11-22 13:05:16,423 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 196 transitions. Word has length 30 [2020-11-22 13:05:16,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:16,424 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 196 transitions. [2020-11-22 13:05:16,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:05:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 196 transitions. [2020-11-22 13:05:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:05:16,424 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:16,425 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 13:05:16,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:05:16,644 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:16,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:16,645 INFO L82 PathProgramCache]: Analyzing trace with hash -2095851731, now seen corresponding path program 1 times [2020-11-22 13:05:16,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:16,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377981876] [2020-11-22 13:05:16,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:16,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:05:16,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:16,852 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 13:05:16,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:16,867 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 13:05:16,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377981876] [2020-11-22 13:05:16,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:16,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:05:16,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644011297] [2020-11-22 13:05:16,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:05:16,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:16,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:05:16,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:16,869 INFO L87 Difference]: Start difference. First operand 144 states and 196 transitions. Second operand 4 states. [2020-11-22 13:05:16,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:16,965 INFO L93 Difference]: Finished difference Result 492 states and 672 transitions. [2020-11-22 13:05:16,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:05:16,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-11-22 13:05:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:16,969 INFO L225 Difference]: With dead ends: 492 [2020-11-22 13:05:16,969 INFO L226 Difference]: Without dead ends: 354 [2020-11-22 13:05:16,970 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 13:05:16,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-11-22 13:05:17,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 266. [2020-11-22 13:05:17,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-22 13:05:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 359 transitions. [2020-11-22 13:05:17,014 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 359 transitions. Word has length 30 [2020-11-22 13:05:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:17,015 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 359 transitions. [2020-11-22 13:05:17,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:05:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 359 transitions. [2020-11-22 13:05:17,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:05:17,016 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:17,016 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 13:05:17,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:05:17,232 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:17,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:17,232 INFO L82 PathProgramCache]: Analyzing trace with hash 191299371, now seen corresponding path program 1 times [2020-11-22 13:05:17,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:17,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906897217] [2020-11-22 13:05:17,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/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 13:05:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:18,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:20,113 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:20,330 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:05:20,330 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:05:20,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:05:20,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:20 BoogieIcfgContainer [2020-11-22 13:05:20,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:20,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:20,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:20,713 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:20,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:11" (3/4) ... [2020-11-22 13:05:20,715 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:05:20,798 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_230def30-7bd8-4cb3-ace7-d7507da62583/bin/utaipan/witness.graphml [2020-11-22 13:05:20,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:20,799 INFO L168 Benchmark]: Toolchain (without parser) took 12244.19 ms. Allocated memory was 50.3 MB in the beginning and 107.0 MB in the end (delta: 56.6 MB). Free memory was 26.2 MB in the beginning and 53.8 MB in the end (delta: -27.7 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,800 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:20,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.72 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.0 MB in the beginning and 29.8 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.46 ms. Allocated memory is still 60.8 MB. Free memory was 29.6 MB in the beginning and 42.6 MB in the end (delta: -12.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,801 INFO L168 Benchmark]: Boogie Preprocessor took 70.77 ms. Allocated memory is still 60.8 MB. Free memory was 42.6 MB in the beginning and 40.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,802 INFO L168 Benchmark]: RCFGBuilder took 2346.20 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 40.5 MB in the beginning and 67.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,802 INFO L168 Benchmark]: TraceAbstraction took 8979.91 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 66.4 MB in the beginning and 66.4 MB in the end (delta: 9.3 kB). Peak memory consumption was 53.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,802 INFO L168 Benchmark]: Witness Printer took 85.08 ms. Allocated memory is still 107.0 MB. Free memory was 66.4 MB in the beginning and 53.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:20,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 662.72 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.0 MB in the beginning and 29.8 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.46 ms. Allocated memory is still 60.8 MB. Free memory was 29.6 MB in the beginning and 42.6 MB in the end (delta: -12.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.77 ms. Allocated memory is still 60.8 MB. Free memory was 42.6 MB in the beginning and 40.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2346.20 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 40.5 MB in the beginning and 67.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8979.91 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 66.4 MB in the beginning and 66.4 MB in the end (delta: 9.3 kB). Peak memory consumption was 53.8 MB. Max. memory is 16.1 GB. * Witness Printer took 85.08 ms. Allocated memory is still 107.0 MB. Free memory was 66.4 MB in the beginning and 53.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L252] int pumpRunning = 0; [L253] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L722] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] int retValue_acc ; [L531] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int retValue_acc ; [L451] retValue_acc = 1 [L452] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L537] tmp = valid_product() [L539] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L183] int splverifierCounter ; [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L187] int tmp___2 ; [L190] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L192] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L194] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L200] tmp = __VERIFIER_nondet_int() [L202] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L210] tmp___0 = __VERIFIER_nondet_int() [L212] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L220] tmp___2 = __VERIFIER_nondet_int() [L222] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L259] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] COND TRUE \read(systemActive) [L288] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] COND TRUE ! pumpRunning [L385] int retValue_acc ; [L386] int tmp ; [L387] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L391] tmp = isHighWaterSensorDry() [L393] COND FALSE !(\read(tmp)) [L396] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L398] retValue_acc = tmp___0 [L399] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] tmp = isHighWaterLevel() [L295] COND TRUE \read(tmp) [L316] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L154] int tmp ; [L155] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] tmp = isMethaneLevelCritical() [L161] COND TRUE \read(tmp) [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L163] tmp___0 = isPumpRunning() [L165] 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_product35.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: 8.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 633 SDtfs, 879 SDslu, 1133 SDs, 0 SdLazy, 123 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 436 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s 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, 2.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 19413 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1806 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...