./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI --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 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI --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 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 02:26:13,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:13,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:13,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:13,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:13,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:13,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:13,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:13,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:13,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:13,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:13,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:13,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:13,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:13,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:13,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:13,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:13,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:13,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:13,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:13,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:13,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:13,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:13,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:13,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:13,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:13,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:13,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:13,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:13,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:13,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:13,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:13,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:13,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:13,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:13,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:13,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:13,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:13,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:13,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:13,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:13,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:14,029 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:14,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:14,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:14,032 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:14,032 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:14,032 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:14,032 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:14,033 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:14,033 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:14,033 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:14,034 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:14,034 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:14,035 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:14,035 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:14,035 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:14,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:14,036 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:14,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:14,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:14,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:14,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:14,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:14,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:14,038 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:14,038 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:14,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:14,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:14,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:14,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:14,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:14,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:14,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:14,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:14,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:14,042 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:14,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:14,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:14,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:14,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:14,043 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_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 [2021-10-11 02:26:14,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:14,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:14,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:14,374 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:14,375 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:14,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2021-10-11 02:26:14,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data/b97c330a3/93487de7c0c446ca841cde28b8f9d4f2/FLAG3c32302c2 [2021-10-11 02:26:15,068 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:15,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2021-10-11 02:26:15,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data/b97c330a3/93487de7c0c446ca841cde28b8f9d4f2/FLAG3c32302c2 [2021-10-11 02:26:15,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data/b97c330a3/93487de7c0c446ca841cde28b8f9d4f2 [2021-10-11 02:26:15,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:15,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:15,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:15,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:15,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:15,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:15" (1/1) ... [2021-10-11 02:26:15,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47bda925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:15, skipping insertion in model container [2021-10-11 02:26:15,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:15" (1/1) ... [2021-10-11 02:26:15,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:15,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:15,892 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c[15762,15775] [2021-10-11 02:26:15,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:15,926 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) [2021-10-11 02:26:15,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c104584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:15, skipping insertion in model container [2021-10-11 02:26:15,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:15,929 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:26:15,932 INFO L168 Benchmark]: Toolchain (without parser) took 565.21 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 47.0 MB in the beginning and 83.2 MB in the end (delta: -36.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:15,934 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:15,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.81 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 46.8 MB in the beginning and 83.2 MB in the end (delta: -36.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:15,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 557.81 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 46.8 MB in the beginning and 83.2 MB in the end (delta: -36.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 444]: 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 0.2.0-7b2dab5 [2021-10-11 02:26:18,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:18,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:18,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:18,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:18,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:18,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:18,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:18,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:18,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:18,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:18,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:18,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:18,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:18,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:18,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:18,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:18,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:18,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:18,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:18,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:18,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:18,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:18,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:18,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:18,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:18,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:18,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:18,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:18,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:18,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:18,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:18,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:18,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:18,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:18,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:18,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:18,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:18,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:18,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:18,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:18,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:26:18,545 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:18,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:18,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:18,547 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:18,547 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:18,547 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:18,547 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:18,547 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:18,548 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:18,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:18,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:18,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:18,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:18,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:18,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:18,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:18,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:18,551 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:26:18,551 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:26:18,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:18,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:18,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:18,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:18,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:18,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:26:18,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:18,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:18,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:18,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:18,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:18,553 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:26:18,553 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:26:18,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:18,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:18,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:18,554 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_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 [2021-10-11 02:26:18,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:19,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:19,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:19,008 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:19,009 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:19,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2021-10-11 02:26:19,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data/183fc549d/6932477aec3f45c7a04425d1e8f0a725/FLAGd2dea5a45 [2021-10-11 02:26:19,697 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:19,698 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2021-10-11 02:26:19,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data/183fc549d/6932477aec3f45c7a04425d1e8f0a725/FLAGd2dea5a45 [2021-10-11 02:26:19,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/data/183fc549d/6932477aec3f45c7a04425d1e8f0a725 [2021-10-11 02:26:19,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:19,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:19,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:19,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:19,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:19,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:19" (1/1) ... [2021-10-11 02:26:19,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9b1703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:19, skipping insertion in model container [2021-10-11 02:26:19,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:19" (1/1) ... [2021-10-11 02:26:20,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:20,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:20,449 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c[15762,15775] [2021-10-11 02:26:20,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:20,491 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:26:20,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:20,610 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c[15762,15775] [2021-10-11 02:26:20,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:20,637 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:20,710 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c[15762,15775] [2021-10-11 02:26:20,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:20,765 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:20,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20 WrapperNode [2021-10-11 02:26:20,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:20,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:20,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:20,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:20,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:20,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:20,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:20,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:20,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... [2021-10-11 02:26:20,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:20,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:20,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:20,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:20,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:26:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:21,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:23,418 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:23,418 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-10-11 02:26:23,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:23 BoogieIcfgContainer [2021-10-11 02:26:23,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:23,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:23,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:23,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:23,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:19" (1/3) ... [2021-10-11 02:26:23,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f504208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:23, skipping insertion in model container [2021-10-11 02:26:23,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:20" (2/3) ... [2021-10-11 02:26:23,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f504208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:23, skipping insertion in model container [2021-10-11 02:26:23,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:23" (3/3) ... [2021-10-11 02:26:23,445 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2021-10-11 02:26:23,460 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:23,464 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:26:23,475 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:26:23,517 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:23,517 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:23,518 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:23,518 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:23,518 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:23,518 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:23,518 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:23,519 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:23,535 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2021-10-11 02:26:23,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:26:23,542 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:23,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:23,545 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:23,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1355288485, now seen corresponding path program 1 times [2021-10-11 02:26:23,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:23,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637353173] [2021-10-11 02:26:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:23,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:26:23,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:23,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:23,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637353173] [2021-10-11 02:26:23,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:23,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:23,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082629750] [2021-10-11 02:26:23,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:26:23,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:23,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:26:23,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:23,928 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2021-10-11 02:26:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:23,953 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2021-10-11 02:26:23,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:26:23,954 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:26:23,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:23,964 INFO L225 Difference]: With dead ends: 154 [2021-10-11 02:26:23,964 INFO L226 Difference]: Without dead ends: 76 [2021-10-11 02:26:23,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-11 02:26:24,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-10-11 02:26:24,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-10-11 02:26:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2021-10-11 02:26:24,006 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2021-10-11 02:26:24,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:24,006 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2021-10-11 02:26:24,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:26:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2021-10-11 02:26:24,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:26:24,007 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:24,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:24,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:26:24,223 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:24,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:24,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1892921914, now seen corresponding path program 1 times [2021-10-11 02:26:24,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:24,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578563637] [2021-10-11 02:26:24,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:24,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:24,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:24,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:24,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:24,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578563637] [2021-10-11 02:26:24,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:24,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:24,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811993079] [2021-10-11 02:26:24,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:24,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:24,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:24,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:24,607 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2021-10-11 02:26:24,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:24,634 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2021-10-11 02:26:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:24,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:26:24,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:24,637 INFO L225 Difference]: With dead ends: 76 [2021-10-11 02:26:24,637 INFO L226 Difference]: Without dead ends: 36 [2021-10-11 02:26:24,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:24,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-11 02:26:24,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-11 02:26:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-11 02:26:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2021-10-11 02:26:24,649 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2021-10-11 02:26:24,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:24,652 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2021-10-11 02:26:24,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2021-10-11 02:26:24,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:26:24,655 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:24,655 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] [2021-10-11 02:26:24,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:26:24,873 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:24,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2021-10-11 02:26:24,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:24,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815310779] [2021-10-11 02:26:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:25,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:25,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:25,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:25,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815310779] [2021-10-11 02:26:25,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:25,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:25,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497350715] [2021-10-11 02:26:25,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:25,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:25,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:25,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:25,142 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2021-10-11 02:26:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:25,173 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2021-10-11 02:26:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:25,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:26:25,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:25,177 INFO L225 Difference]: With dead ends: 96 [2021-10-11 02:26:25,178 INFO L226 Difference]: Without dead ends: 66 [2021-10-11 02:26:25,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:25,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-11 02:26:25,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2021-10-11 02:26:25,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2021-10-11 02:26:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2021-10-11 02:26:25,195 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 22 [2021-10-11 02:26:25,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:25,195 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2021-10-11 02:26:25,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:25,195 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2021-10-11 02:26:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:26:25,196 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:25,197 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] [2021-10-11 02:26:25,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:26:25,410 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:25,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:25,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2021-10-11 02:26:25,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:25,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348025640] [2021-10-11 02:26:25,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:25,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:25,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:25,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:25,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348025640] [2021-10-11 02:26:25,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:25,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:25,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585408334] [2021-10-11 02:26:25,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:25,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:25,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:25,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:25,651 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand 3 states. [2021-10-11 02:26:25,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:25,741 INFO L93 Difference]: Finished difference Result 159 states and 238 transitions. [2021-10-11 02:26:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:25,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 02:26:25,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:25,747 INFO L225 Difference]: With dead ends: 159 [2021-10-11 02:26:25,747 INFO L226 Difference]: Without dead ends: 103 [2021-10-11 02:26:25,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:25,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-11 02:26:25,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2021-10-11 02:26:25,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2021-10-11 02:26:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2021-10-11 02:26:25,779 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 23 [2021-10-11 02:26:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:25,781 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2021-10-11 02:26:25,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:25,782 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2021-10-11 02:26:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:26:25,783 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:25,783 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] [2021-10-11 02:26:25,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:26:25,998 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:25,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:25,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2021-10-11 02:26:25,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:25,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944575447] [2021-10-11 02:26:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:26,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:26,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:26,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:26,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944575447] [2021-10-11 02:26:26,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:26,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:26,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911905091] [2021-10-11 02:26:26,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:26,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:26,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:26,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:26,249 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand 5 states. [2021-10-11 02:26:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:26,377 INFO L93 Difference]: Finished difference Result 369 states and 545 transitions. [2021-10-11 02:26:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:26:26,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:26:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:26,380 INFO L225 Difference]: With dead ends: 369 [2021-10-11 02:26:26,380 INFO L226 Difference]: Without dead ends: 274 [2021-10-11 02:26:26,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:26:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-10-11 02:26:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 182. [2021-10-11 02:26:26,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2021-10-11 02:26:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2021-10-11 02:26:26,411 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 25 [2021-10-11 02:26:26,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:26,412 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2021-10-11 02:26:26,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2021-10-11 02:26:26,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:26:26,413 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:26,414 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] [2021-10-11 02:26:26,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:26:26,627 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:26,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:26,627 INFO L82 PathProgramCache]: Analyzing trace with hash -2850263, now seen corresponding path program 1 times [2021-10-11 02:26:26,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:26,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317921242] [2021-10-11 02:26:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:26,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:26:26,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:26,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:26,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:26,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317921242] [2021-10-11 02:26:26,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:26,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:26,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603377068] [2021-10-11 02:26:26,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:26:26,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:26,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:26:26,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:26,888 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand 6 states. [2021-10-11 02:26:28,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:28,615 INFO L93 Difference]: Finished difference Result 526 states and 769 transitions. [2021-10-11 02:26:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:26:28,616 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2021-10-11 02:26:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:28,619 INFO L225 Difference]: With dead ends: 526 [2021-10-11 02:26:28,619 INFO L226 Difference]: Without dead ends: 431 [2021-10-11 02:26:28,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:26:28,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-10-11 02:26:28,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 350. [2021-10-11 02:26:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2021-10-11 02:26:28,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 491 transitions. [2021-10-11 02:26:28,671 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 491 transitions. Word has length 26 [2021-10-11 02:26:28,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:28,671 INFO L481 AbstractCegarLoop]: Abstraction has 350 states and 491 transitions. [2021-10-11 02:26:28,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:26:28,672 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 491 transitions. [2021-10-11 02:26:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 02:26:28,682 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:28,683 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] [2021-10-11 02:26:28,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:26:28,895 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:28,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:28,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1758708758, now seen corresponding path program 1 times [2021-10-11 02:26:28,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:28,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363110777] [2021-10-11 02:26:28,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:29,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:29,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:26:29,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:29,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363110777] [2021-10-11 02:26:29,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:29,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:29,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672534512] [2021-10-11 02:26:29,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:29,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:29,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:29,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:29,148 INFO L87 Difference]: Start difference. First operand 350 states and 491 transitions. Second operand 5 states. [2021-10-11 02:26:29,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:29,264 INFO L93 Difference]: Finished difference Result 970 states and 1350 transitions. [2021-10-11 02:26:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:26:29,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2021-10-11 02:26:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:29,269 INFO L225 Difference]: With dead ends: 970 [2021-10-11 02:26:29,269 INFO L226 Difference]: Without dead ends: 626 [2021-10-11 02:26:29,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:26:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2021-10-11 02:26:29,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 374. [2021-10-11 02:26:29,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2021-10-11 02:26:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 515 transitions. [2021-10-11 02:26:29,307 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 515 transitions. Word has length 44 [2021-10-11 02:26:29,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:29,308 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 515 transitions. [2021-10-11 02:26:29,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:29,308 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 515 transitions. [2021-10-11 02:26:29,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 02:26:29,309 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:29,309 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] [2021-10-11 02:26:29,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:26:29,524 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:29,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:29,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1899257368, now seen corresponding path program 1 times [2021-10-11 02:26:29,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:29,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623803000] [2021-10-11 02:26:29,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:29,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:26:29,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:26:29,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:29,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623803000] [2021-10-11 02:26:29,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:29,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:29,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873660362] [2021-10-11 02:26:29,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:29,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:29,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:29,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:29,800 INFO L87 Difference]: Start difference. First operand 374 states and 515 transitions. Second operand 4 states. [2021-10-11 02:26:29,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:29,871 INFO L93 Difference]: Finished difference Result 836 states and 1148 transitions. [2021-10-11 02:26:29,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:29,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2021-10-11 02:26:29,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:29,878 INFO L225 Difference]: With dead ends: 836 [2021-10-11 02:26:29,878 INFO L226 Difference]: Without dead ends: 468 [2021-10-11 02:26:29,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:29,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-10-11 02:26:29,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 337. [2021-10-11 02:26:29,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2021-10-11 02:26:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 457 transitions. [2021-10-11 02:26:29,918 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 457 transitions. Word has length 44 [2021-10-11 02:26:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:29,919 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 457 transitions. [2021-10-11 02:26:29,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 457 transitions. [2021-10-11 02:26:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-11 02:26:29,924 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:29,924 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] [2021-10-11 02:26:30,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:26:30,136 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:30,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:30,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1942803224, now seen corresponding path program 1 times [2021-10-11 02:26:30,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:30,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117856242] [2021-10-11 02:26:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:26:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:30,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:26:30,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:30,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:30,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117856242] [2021-10-11 02:26:30,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [153913189] [2021-10-11 02:26:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:26:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:30,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:26:30,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:30,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:30,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209507052] [2021-10-11 02:26:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:31,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:26:31,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:31,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:31,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:26:31,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-11 02:26:31,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005975184] [2021-10-11 02:26:31,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:26:31,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:31,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:26:31,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:26:31,196 INFO L87 Difference]: Start difference. First operand 337 states and 457 transitions. Second operand 10 states. [2021-10-11 02:26:35,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:35,175 INFO L93 Difference]: Finished difference Result 1472 states and 2042 transitions. [2021-10-11 02:26:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-11 02:26:35,175 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2021-10-11 02:26:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:35,182 INFO L225 Difference]: With dead ends: 1472 [2021-10-11 02:26:35,182 INFO L226 Difference]: Without dead ends: 1187 [2021-10-11 02:26:35,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-11 02:26:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2021-10-11 02:26:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 438. [2021-10-11 02:26:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2021-10-11 02:26:35,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 610 transitions. [2021-10-11 02:26:35,237 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 610 transitions. Word has length 45 [2021-10-11 02:26:35,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:35,237 INFO L481 AbstractCegarLoop]: Abstraction has 438 states and 610 transitions. [2021-10-11 02:26:35,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:26:35,238 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 610 transitions. [2021-10-11 02:26:35,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-11 02:26:35,238 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:35,239 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] [2021-10-11 02:26:35,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt [2021-10-11 02:26:35,853 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:35,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:35,854 INFO L82 PathProgramCache]: Analyzing trace with hash 511998341, now seen corresponding path program 2 times [2021-10-11 02:26:35,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:35,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077551666] [2021-10-11 02:26:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2021-10-11 02:26:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:37,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:38,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:38,850 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:26:38,850 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:26:39,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2021-10-11 02:26:39,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:39 BoogieIcfgContainer [2021-10-11 02:26:39,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:39,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:39,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:39,283 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:39,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:23" (3/4) ... [2021-10-11 02:26:39,285 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:26:39,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42512773-b089-4c6e-9870-9c49d6d162cb/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:39,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:39,442 INFO L168 Benchmark]: Toolchain (without parser) took 19466.17 ms. Allocated memory was 79.7 MB in the beginning and 125.8 MB in the end (delta: 46.1 MB). Free memory was 44.0 MB in the beginning and 59.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,442 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 61.6 MB in the beginning and 61.5 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:39,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.06 ms. Allocated memory is still 79.7 MB. Free memory was 43.8 MB in the beginning and 46.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.48 ms. Allocated memory is still 79.7 MB. Free memory was 46.7 MB in the beginning and 43.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,444 INFO L168 Benchmark]: Boogie Preprocessor took 77.83 ms. Allocated memory is still 79.7 MB. Free memory was 43.8 MB in the beginning and 41.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,444 INFO L168 Benchmark]: RCFGBuilder took 2480.43 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 41.5 MB in the beginning and 62.0 MB in the end (delta: -20.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,445 INFO L168 Benchmark]: TraceAbstraction took 15859.11 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 61.7 MB in the beginning and 81.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,445 INFO L168 Benchmark]: Witness Printer took 158.19 ms. Allocated memory is still 125.8 MB. Free memory was 81.0 MB in the beginning and 59.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:39,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 61.6 MB in the beginning and 61.5 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 791.06 ms. Allocated memory is still 79.7 MB. Free memory was 43.8 MB in the beginning and 46.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.48 ms. Allocated memory is still 79.7 MB. Free memory was 46.7 MB in the beginning and 43.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.83 ms. Allocated memory is still 79.7 MB. Free memory was 43.8 MB in the beginning and 41.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2480.43 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 41.5 MB in the beginning and 62.0 MB in the end (delta: -20.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15859.11 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 61.7 MB in the beginning and 81.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. * Witness Printer took 158.19 ms. Allocated memory is still 125.8 MB. Free memory was 81.0 MB in the beginning and 59.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 786]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L150] int pumpRunning = 0; [L151] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L585] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L826] int waterLevel = 1; [L827] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] int retValue_acc ; [L394] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] COND TRUE waterLevel < 2 [L845] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND TRUE ! pumpRunning [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L906] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] COND FALSE !(waterLevel < 2) [L913] retValue_acc = 0 [L914] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L123] tmp = getWaterLevel() [L125] COND TRUE tmp == 0 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L127] tmp___0 = isPumpRunning() [L129] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L786] 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, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.5s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 756 SDtfs, 1271 SDslu, 1494 SDs, 0 SdLazy, 290 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 503 GetRequests, 451 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=438occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1311 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 412 NumberOfCodeBlocks, 412 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 473 ConstructedInterpolants, 0 QuantifiedInterpolants, 68451 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2307 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 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...