./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.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_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 5755897c1254f90f3058dc77caf92ead54b02784 ............................................................................................................................................ 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_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 5755897c1254f90f3058dc77caf92ead54b02784 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 13:03:41,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:03:41,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:03:41,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:03:41,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:03:41,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:03:41,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:03:41,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:03:41,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:03:41,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:03:41,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:03:41,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:03:41,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:03:41,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:03:41,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:03:41,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:03:41,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:03:41,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:03:41,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:03:41,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:03:41,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:03:41,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:03:41,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:03:41,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:03:41,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:03:41,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:03:41,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:03:41,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:03:41,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:03:41,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:03:41,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:03:41,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:03:41,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:03:41,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:03:41,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:03:41,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:03:41,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:03:41,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:03:41,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:03:41,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:03:41,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:03:41,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:03:41,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:03:41,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:03:41,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:03:41,173 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:03:41,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:03:41,174 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:03:41,174 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:03:41,174 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:03:41,174 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:03:41,175 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:03:41,175 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:03:41,175 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:03:41,175 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:03:41,175 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:03:41,176 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:03:41,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:03:41,176 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:03:41,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:03:41,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:03:41,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:03:41,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:03:41,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:03:41,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:03:41,178 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:03:41,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:03:41,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:03:41,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:03:41,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:03:41,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:03:41,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:03:41,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:03:41,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:03:41,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:03:41,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:03:41,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:03:41,180 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:03:41,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:03:41,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:03:41,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:03:41,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:03:41,181 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_f0a37081-9019-4666-a27f-f5241d4bd0a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5755897c1254f90f3058dc77caf92ead54b02784 [2020-11-22 13:03:41,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:03:41,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:03:41,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:03:41,492 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:03:41,494 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:03:41,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2020-11-22 13:03:41,587 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data/6184f5c33/fdb2d553c72848f09d0d727a5527563c/FLAG98645c29d [2020-11-22 13:03:42,159 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:03:42,159 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2020-11-22 13:03:42,172 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data/6184f5c33/fdb2d553c72848f09d0d727a5527563c/FLAG98645c29d [2020-11-22 13:03:42,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data/6184f5c33/fdb2d553c72848f09d0d727a5527563c [2020-11-22 13:03:42,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:03:42,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:03:42,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:42,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:03:42,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:03:42,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:42" (1/1) ... [2020-11-22 13:03:42,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af9fc8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:42, skipping insertion in model container [2020-11-22 13:03:42,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:42" (1/1) ... [2020-11-22 13:03:42,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:03:42,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:03:42,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:42,855 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 13:03:42,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fa3f030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:42, skipping insertion in model container [2020-11-22 13:03:42,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:42,856 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:03:42,858 INFO L168 Benchmark]: Toolchain (without parser) took 363.98 ms. Allocated memory is still 88.1 MB. Free memory was 54.2 MB in the beginning and 63.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:42,859 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 88.1 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:03:42,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.10 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 63.0 MB in the end (delta: -9.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:42,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 88.1 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 356.10 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 63.0 MB in the end (delta: -9.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 575]: 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 13:03:45,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:03:45,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:03:45,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:03:45,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:03:45,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:03:45,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:03:45,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:03:45,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:03:45,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:03:45,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:03:45,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:03:45,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:03:45,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:03:45,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:03:45,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:03:45,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:03:45,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:03:45,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:03:45,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:03:45,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:03:45,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:03:45,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:03:45,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:03:45,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:03:45,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:03:45,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:03:45,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:03:45,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:03:45,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:03:45,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:03:45,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:03:45,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:03:45,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:03:45,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:03:45,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:03:45,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:03:45,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:03:45,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:03:45,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:03:45,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:03:45,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:03:45,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:03:45,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:03:45,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:03:45,206 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:03:45,206 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:03:45,206 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:03:45,207 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:03:45,207 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:03:45,207 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:03:45,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:03:45,209 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:03:45,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:03:45,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:03:45,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:03:45,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:03:45,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:03:45,211 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:03:45,211 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:03:45,211 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:03:45,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:03:45,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:03:45,212 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:03:45,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:03:45,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:03:45,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:03:45,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:03:45,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:03:45,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:03:45,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:03:45,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:03:45,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:03:45,214 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:03:45,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:03:45,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:03:45,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:03:45,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:03:45,215 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_f0a37081-9019-4666-a27f-f5241d4bd0a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5755897c1254f90f3058dc77caf92ead54b02784 [2020-11-22 13:03:45,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:03:45,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:03:45,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:03:45,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:03:45,645 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:03:45,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2020-11-22 13:03:45,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data/a8dc9fff0/bec06bf1d9574cf2b7aeae3c95db3542/FLAGd410a7988 [2020-11-22 13:03:46,277 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:03:46,277 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2020-11-22 13:03:46,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data/a8dc9fff0/bec06bf1d9574cf2b7aeae3c95db3542/FLAGd410a7988 [2020-11-22 13:03:46,622 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/data/a8dc9fff0/bec06bf1d9574cf2b7aeae3c95db3542 [2020-11-22 13:03:46,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:03:46,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:03:46,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:46,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:03:46,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:03:46,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:46" (1/1) ... [2020-11-22 13:03:46,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f56676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:46, skipping insertion in model container [2020-11-22 13:03:46,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:46" (1/1) ... [2020-11-22 13:03:46,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:03:46,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:03:46,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:47,020 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:03:47,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:03:47,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:47,160 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:03:47,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:47,292 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:03:47,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47 WrapperNode [2020-11-22 13:03:47,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:47,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:03:47,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:03:47,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:03:47,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:03:47,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:03:47,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:03:47,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:03:47,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... [2020-11-22 13:03:47,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:03:47,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:03:47,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:03:47,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:03:47,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:47,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:03:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:03:47,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:03:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:03:49,927 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:03:49,928 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-11-22 13:03:49,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:49 BoogieIcfgContainer [2020-11-22 13:03:49,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:03:49,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:03:49,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:03:49,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:03:49,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:03:46" (1/3) ... [2020-11-22 13:03:49,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1513445e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:03:49, skipping insertion in model container [2020-11-22 13:03:49,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:47" (2/3) ... [2020-11-22 13:03:49,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1513445e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:03:49, skipping insertion in model container [2020-11-22 13:03:49,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:49" (3/3) ... [2020-11-22 13:03:49,940 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-11-22 13:03:49,953 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:03:49,958 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:03:49,973 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:03:50,010 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:03:50,011 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:03:50,011 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:03:50,011 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:03:50,011 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:03:50,012 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:03:50,012 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:03:50,012 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:03:50,034 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-11-22 13:03:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:03:50,040 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:50,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:50,041 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:50,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:50,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1558904107, now seen corresponding path program 1 times [2020-11-22 13:03:50,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:50,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249959232] [2020-11-22 13:03:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:50,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:03:50,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:50,355 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 13:03:50,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:50,364 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 13:03:50,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249959232] [2020-11-22 13:03:50,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:50,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:03:50,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518484576] [2020-11-22 13:03:50,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:03:50,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:03:50,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:03:50,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:03:50,396 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 2 states. [2020-11-22 13:03:50,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:50,437 INFO L93 Difference]: Finished difference Result 153 states and 230 transitions. [2020-11-22 13:03:50,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:03:50,440 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 13:03:50,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:50,453 INFO L225 Difference]: With dead ends: 153 [2020-11-22 13:03:50,453 INFO L226 Difference]: Without dead ends: 74 [2020-11-22 13:03:50,456 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 13:03:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-22 13:03:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-22 13:03:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-22 13:03:50,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-11-22 13:03:50,495 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2020-11-22 13:03:50,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:50,496 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-11-22 13:03:50,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:03:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-11-22 13:03:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:03:50,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:50,497 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 13:03:50,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:03:50,713 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:50,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1073231156, now seen corresponding path program 1 times [2020-11-22 13:03:50,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:50,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179254627] [2020-11-22 13:03:50,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:50,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:03:50,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:50,977 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 13:03:50,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:50,991 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 13:03:50,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179254627] [2020-11-22 13:03:50,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:50,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:03:50,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711644895] [2020-11-22 13:03:50,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:03:50,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:03:50,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:03:50,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:03:50,994 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 4 states. [2020-11-22 13:03:51,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:51,008 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2020-11-22 13:03:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:03:51,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:03:51,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:51,010 INFO L225 Difference]: With dead ends: 74 [2020-11-22 13:03:51,010 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 13:03:51,011 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 13:03:51,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 13:03:51,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 13:03:51,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 13:03:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-22 13:03:51,016 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2020-11-22 13:03:51,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:51,017 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-22 13:03:51,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:03:51,017 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-22 13:03:51,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:03:51,018 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:51,018 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 13:03:51,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:03:51,234 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:51,235 INFO L82 PathProgramCache]: Analyzing trace with hash -964945646, now seen corresponding path program 1 times [2020-11-22 13:03:51,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:51,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901784354] [2020-11-22 13:03:51,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:51,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:03:51,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:51,527 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 13:03:51,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:51,548 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 13:03:51,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901784354] [2020-11-22 13:03:51,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:51,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:03:51,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128893425] [2020-11-22 13:03:51,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:03:51,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:03:51,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:03:51,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:03:51,550 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 4 states. [2020-11-22 13:03:51,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:51,583 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2020-11-22 13:03:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:03:51,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 13:03:51,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:51,585 INFO L225 Difference]: With dead ends: 62 [2020-11-22 13:03:51,585 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 13:03:51,586 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 13:03:51,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 13:03:51,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 13:03:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 13:03:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2020-11-22 13:03:51,592 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2020-11-22 13:03:51,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:51,592 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2020-11-22 13:03:51,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:03:51,593 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2020-11-22 13:03:51,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-22 13:03:51,593 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:51,594 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 13:03:51,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:03:51,813 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:51,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:51,814 INFO L82 PathProgramCache]: Analyzing trace with hash -952202930, now seen corresponding path program 1 times [2020-11-22 13:03:51,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:51,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461756841] [2020-11-22 13:03:51,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:52,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:03:52,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:52,018 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 13:03:52,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:52,021 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 13:03:52,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461756841] [2020-11-22 13:03:52,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:52,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:03:52,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121573565] [2020-11-22 13:03:52,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:03:52,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:03:52,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:03:52,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:03:52,023 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2020-11-22 13:03:52,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:52,084 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2020-11-22 13:03:52,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:03:52,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-22 13:03:52,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:52,086 INFO L225 Difference]: With dead ends: 83 [2020-11-22 13:03:52,086 INFO L226 Difference]: Without dead ends: 55 [2020-11-22 13:03:52,086 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 13:03:52,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-22 13:03:52,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-11-22 13:03:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-22 13:03:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2020-11-22 13:03:52,095 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2020-11-22 13:03:52,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:52,096 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2020-11-22 13:03:52,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:03:52,096 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2020-11-22 13:03:52,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-22 13:03:52,097 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:52,097 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] [2020-11-22 13:03:52,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:03:52,317 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:52,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:52,318 INFO L82 PathProgramCache]: Analyzing trace with hash -2049720417, now seen corresponding path program 1 times [2020-11-22 13:03:52,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:52,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847364144] [2020-11-22 13:03:52,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:52,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:03:52,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:52,546 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 13:03:52,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:52,563 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 13:03:52,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847364144] [2020-11-22 13:03:52,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:52,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:03:52,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674978662] [2020-11-22 13:03:52,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:03:52,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:03:52,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:03:52,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:03:52,565 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2020-11-22 13:03:52,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:52,640 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2020-11-22 13:03:52,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:03:52,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-22 13:03:52,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:52,643 INFO L225 Difference]: With dead ends: 139 [2020-11-22 13:03:52,643 INFO L226 Difference]: Without dead ends: 92 [2020-11-22 13:03:52,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 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 13:03:52,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-22 13:03:52,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2020-11-22 13:03:52,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-22 13:03:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-11-22 13:03:52,661 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2020-11-22 13:03:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:52,662 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-11-22 13:03:52,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:03:52,662 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-11-22 13:03:52,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-22 13:03:52,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:52,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:52,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:03:52,883 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:52,883 INFO L82 PathProgramCache]: Analyzing trace with hash 612790626, now seen corresponding path program 1 times [2020-11-22 13:03:52,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:52,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236810915] [2020-11-22 13:03:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:53,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:03:53,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:53,120 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 13:03:53,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:53,155 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 13:03:53,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236810915] [2020-11-22 13:03:53,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:53,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:03:53,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567051688] [2020-11-22 13:03:53,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:03:53,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:03:53,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:03:53,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:03:53,158 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 8 states. [2020-11-22 13:03:53,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:53,481 INFO L93 Difference]: Finished difference Result 390 states and 558 transitions. [2020-11-22 13:03:53,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-22 13:03:53,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-11-22 13:03:53,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:53,484 INFO L225 Difference]: With dead ends: 390 [2020-11-22 13:03:53,485 INFO L226 Difference]: Without dead ends: 340 [2020-11-22 13:03:53,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-11-22 13:03:53,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-11-22 13:03:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2020-11-22 13:03:53,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-22 13:03:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2020-11-22 13:03:53,519 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 29 [2020-11-22 13:03:53,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:53,519 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2020-11-22 13:03:53,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:03:53,519 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2020-11-22 13:03:53,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-22 13:03:53,522 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:53,523 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:03:53,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:03:53,739 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:53,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:53,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1919887718, now seen corresponding path program 1 times [2020-11-22 13:03:53,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:53,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580860583] [2020-11-22 13:03:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:53,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:03:53,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 13:03:53,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-22 13:03:53,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580860583] [2020-11-22 13:03:53,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:03:53,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:03:53,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276191001] [2020-11-22 13:03:53,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:03:53,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:03:53,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:03:53,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:03:53,986 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand 6 states. [2020-11-22 13:03:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:54,054 INFO L93 Difference]: Finished difference Result 325 states and 442 transitions. [2020-11-22 13:03:54,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:03:54,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-11-22 13:03:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:54,056 INFO L225 Difference]: With dead ends: 325 [2020-11-22 13:03:54,056 INFO L226 Difference]: Without dead ends: 191 [2020-11-22 13:03:54,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 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 13:03:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-11-22 13:03:54,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 120. [2020-11-22 13:03:54,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-22 13:03:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2020-11-22 13:03:54,085 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 44 [2020-11-22 13:03:54,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:54,088 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2020-11-22 13:03:54,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:03:54,088 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2020-11-22 13:03:54,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-22 13:03:54,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:54,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:03:54,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:03:54,319 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:54,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:54,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1876341862, now seen corresponding path program 1 times [2020-11-22 13:03:54,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:54,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377360997] [2020-11-22 13:03:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/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 13:03:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:54,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:03:54,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:54,643 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-22 13:03:54,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 13:03:54,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377360997] [2020-11-22 13:03:54,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [641099311] [2020-11-22 13:03:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 13:03:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:54,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:03:54,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 13:03:54,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:54,998 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 13:03:54,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687348146] [2020-11-22 13:03:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:03:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:03:55,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:03:55,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:03:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 13:03:55,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:03:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 13:03:55,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-11-22 13:03:55,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5, 5] total 10 [2020-11-22 13:03:55,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916786302] [2020-11-22 13:03:55,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-22 13:03:55,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:03:55,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-22 13:03:55,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-22 13:03:55,194 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand 11 states. [2020-11-22 13:03:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:03:56,093 INFO L93 Difference]: Finished difference Result 727 states and 1006 transitions. [2020-11-22 13:03:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-22 13:03:56,094 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-11-22 13:03:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:03:56,098 INFO L225 Difference]: With dead ends: 727 [2020-11-22 13:03:56,098 INFO L226 Difference]: Without dead ends: 636 [2020-11-22 13:03:56,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 252 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-11-22 13:03:56,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2020-11-22 13:03:56,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 217. [2020-11-22 13:03:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-11-22 13:03:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 296 transitions. [2020-11-22 13:03:56,156 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 296 transitions. Word has length 45 [2020-11-22 13:03:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:03:56,157 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 296 transitions. [2020-11-22 13:03:56,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-22 13:03:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 296 transitions. [2020-11-22 13:03:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-22 13:03:56,158 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:03:56,158 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:03:56,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:03:56,775 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:03:56,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:03:56,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1136122685, now seen corresponding path program 2 times [2020-11-22 13:03:56,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:03:56,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488572254] [2020-11-22 13:03:56,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-22 13:03:58,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-22 13:03:58,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-22 13:03:58,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:03:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:03:58,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:03:59,086 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:03:59,086 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:03:59,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 13:03:59,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:03:59 BoogieIcfgContainer [2020-11-22 13:03:59,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:03:59,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:03:59,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:03:59,434 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:03:59,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:03:49" (3/4) ... [2020-11-22 13:03:59,436 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:03:59,556 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0a37081-9019-4666-a27f-f5241d4bd0a5/bin/utaipan/witness.graphml [2020-11-22 13:03:59,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:03:59,558 INFO L168 Benchmark]: Toolchain (without parser) took 12930.08 ms. Allocated memory was 50.3 MB in the beginning and 107.0 MB in the end (delta: 56.6 MB). Free memory was 26.1 MB in the beginning and 43.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:59,558 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:03:59,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.37 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 37.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:59,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.99 ms. Allocated memory is still 60.8 MB. Free memory was 37.2 MB in the beginning and 34.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:59,559 INFO L168 Benchmark]: Boogie Preprocessor took 79.00 ms. Allocated memory is still 60.8 MB. Free memory was 34.2 MB in the beginning and 31.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:59,560 INFO L168 Benchmark]: RCFGBuilder took 2481.97 ms. Allocated memory is still 60.8 MB. Free memory was 31.9 MB in the beginning and 25.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:59,560 INFO L168 Benchmark]: TraceAbstraction took 9501.03 ms. Allocated memory was 60.8 MB in the beginning and 107.0 MB in the end (delta: 46.1 MB). Free memory was 24.8 MB in the beginning and 66.9 MB in the end (delta: -42.1 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:59,560 INFO L168 Benchmark]: Witness Printer took 122.18 ms. Allocated memory is still 107.0 MB. Free memory was 66.9 MB in the beginning and 43.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:03:59,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 663.37 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 37.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.99 ms. Allocated memory is still 60.8 MB. Free memory was 37.2 MB in the beginning and 34.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.00 ms. Allocated memory is still 60.8 MB. Free memory was 34.2 MB in the beginning and 31.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2481.97 ms. Allocated memory is still 60.8 MB. Free memory was 31.9 MB in the beginning and 25.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9501.03 ms. Allocated memory was 60.8 MB in the beginning and 107.0 MB in the end (delta: 46.1 MB). Free memory was 24.8 MB in the beginning and 66.9 MB in the end (delta: -42.1 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * Witness Printer took 122.18 ms. Allocated memory is still 107.0 MB. Free memory was 66.9 MB in the beginning and 43.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 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: [L71] int cleanupTimeShifts = 4; [L284] int pumpRunning = 0; [L285] int systemActive = 1; [L444] int waterLevel = 1; [L445] int methaneLevelCritical = 0; [L716] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L152] int retValue_acc ; [L153] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L201] int retValue_acc ; [L204] retValue_acc = 1 [L205] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L212] int splverifierCounter ; [L213] int tmp ; [L214] int tmp___0 ; [L215] int tmp___1 ; [L216] int tmp___2 ; [L219] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L221] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L223] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L229] tmp = __VERIFIER_nondet_int() [L231] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] COND TRUE waterLevel < 2 [L463] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L239] tmp___0 = __VERIFIER_nondet_int() [L241] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L249] tmp___2 = __VERIFIER_nondet_int() [L251] COND TRUE \read(tmp___2) [L439] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L291] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L298] COND TRUE \read(systemActive) [L320] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] COND TRUE ! pumpRunning [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L524] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L527] COND FALSE !(waterLevel < 2) [L531] retValue_acc = 0 [L532] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L423] tmp = isHighWaterSensorDry() [L425] COND FALSE !(\read(tmp)) [L428] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] tmp = isHighWaterLevel() [L327] COND TRUE \read(tmp) [L348] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L515] int retValue_acc ; [L518] retValue_acc = waterLevel [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L221] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L223] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L229] tmp = __VERIFIER_nondet_int() [L231] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L239] tmp___0 = __VERIFIER_nondet_int() [L241] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L249] tmp___2 = __VERIFIER_nondet_int() [L251] COND TRUE \read(tmp___2) [L439] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L291] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L450] COND TRUE waterLevel > 0 [L451] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L298] COND TRUE \read(systemActive) [L320] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L323] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L46] int tmp ; [L47] int tmp___0 ; [L515] int retValue_acc ; [L518] retValue_acc = waterLevel [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L221] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L223] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] tmp = __VERIFIER_nondet_int() [L231] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L239] tmp___0 = __VERIFIER_nondet_int() [L241] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L249] tmp___2 = __VERIFIER_nondet_int() [L251] COND TRUE \read(tmp___2) [L439] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L291] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L450] COND TRUE waterLevel > 0 [L451] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L298] COND TRUE \read(systemActive) [L320] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L323] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L46] int tmp ; [L47] int tmp___0 ; [L515] int retValue_acc ; [L518] retValue_acc = waterLevel [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product34.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 584 SDtfs, 1409 SDslu, 1226 SDs, 0 SdLazy, 278 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 643 GetRequests, 583 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 728 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 610 ConstructedInterpolants, 1 QuantifiedInterpolants, 72260 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2107 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 58/112 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...