./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8 --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 e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:13:25,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:13:25,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:13:25,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:13:25,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:13:25,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:13:25,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:13:25,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:13:25,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:13:25,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:13:25,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:13:25,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:13:25,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:13:25,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:13:25,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:13:25,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:13:25,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:13:25,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:13:25,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:13:25,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:13:25,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:13:25,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:13:25,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:13:25,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:13:26,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:13:26,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:13:26,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:13:26,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:13:26,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:13:26,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:13:26,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:13:26,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:13:26,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:13:26,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:13:26,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:13:26,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:13:26,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:13:26,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:13:26,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:13:26,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:13:26,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:13:26,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:13:26,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:13:26,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:13:26,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:13:26,087 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:13:26,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:13:26,088 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:13:26,088 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:13:26,089 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:13:26,097 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:13:26,097 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:13:26,099 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:13:26,099 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:13:26,099 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:13:26,100 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:13:26,100 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:13:26,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:13:26,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:13:26,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:13:26,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:13:26,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:13:26,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:13:26,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:13:26,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:13:26,103 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:13:26,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:13:26,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:13:26,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:13:26,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:13:26,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:13:26,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:13:26,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:13:26,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:13:26,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:13:26,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:13:26,109 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:13:26,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:13:26,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:13:26,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:13:26,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:13:26,110 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_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b [2021-11-07 01:13:26,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:13:26,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:13:26,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:13:26,448 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:13:26,449 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:13:26,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2021-11-07 01:13:26,518 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data/aeb6176ff/548cd8b2fbf34fd6a4fb39b28393fb83/FLAG3966ea269 [2021-11-07 01:13:27,126 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:13:27,127 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2021-11-07 01:13:27,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data/aeb6176ff/548cd8b2fbf34fd6a4fb39b28393fb83/FLAG3966ea269 [2021-11-07 01:13:27,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data/aeb6176ff/548cd8b2fbf34fd6a4fb39b28393fb83 [2021-11-07 01:13:27,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:13:27,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:13:27,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:13:27,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:13:27,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:13:27,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:13:27" (1/1) ... [2021-11-07 01:13:27,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36766d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:27, skipping insertion in model container [2021-11-07 01:13:27,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:13:27" (1/1) ... [2021-11-07 01:13:27,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:13:27,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:13:27,759 WARN L228 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_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2021-11-07 01:13:27,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:13:27,918 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) [2021-11-07 01:13:27,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@340f8535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:27, skipping insertion in model container [2021-11-07 01:13:27,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:13:27,919 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:13:27,922 INFO L168 Benchmark]: Toolchain (without parser) took 482.59 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 87.2 MB in the beginning and 115.7 MB in the end (delta: -28.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:27,923 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 117.4 MB. Free memory is still 71.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:13:27,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.76 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 86.9 MB in the beginning and 115.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:27,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 117.4 MB. Free memory is still 71.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 471.76 ms. Allocated memory was 117.4 MB in the beginning and 144.7 MB in the end (delta: 27.3 MB). Free memory was 86.9 MB in the beginning and 115.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 565]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8 --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 e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:13:30,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:13:30,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:13:30,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:13:30,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:13:30,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:13:30,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:13:30,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:13:30,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:13:30,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:13:30,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:13:30,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:13:30,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:13:30,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:13:30,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:13:30,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:13:30,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:13:30,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:13:30,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:13:30,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:13:30,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:13:30,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:13:30,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:13:30,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:13:30,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:13:30,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:13:30,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:13:30,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:13:30,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:13:30,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:13:30,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:13:30,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:13:30,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:13:30,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:13:30,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:13:30,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:13:30,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:13:30,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:13:30,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:13:30,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:13:30,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:13:30,716 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:13:30,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:13:30,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:13:30,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:13:30,755 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:13:30,756 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:13:30,756 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:13:30,757 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:13:30,757 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:13:30,757 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:13:30,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:13:30,760 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:13:30,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:13:30,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:13:30,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:13:30,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:13:30,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:13:30,762 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:13:30,762 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:13:30,763 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:13:30,763 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:13:30,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:13:30,764 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:13:30,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:13:30,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:13:30,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:13:30,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:13:30,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:13:30,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:13:30,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:13:30,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:13:30,766 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:13:30,767 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:13:30,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:13:30,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:13:30,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:13:30,768 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_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b [2021-11-07 01:13:31,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:13:31,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:13:31,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:13:31,347 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:13:31,348 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:13:31,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2021-11-07 01:13:31,448 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data/433f77575/6834c930d77c45bb9e02c6a1341625e4/FLAG646d1c919 [2021-11-07 01:13:32,219 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:13:32,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2021-11-07 01:13:32,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data/433f77575/6834c930d77c45bb9e02c6a1341625e4/FLAG646d1c919 [2021-11-07 01:13:32,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/data/433f77575/6834c930d77c45bb9e02c6a1341625e4 [2021-11-07 01:13:32,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:13:32,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:13:32,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:13:32,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:13:32,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:13:32,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:13:32" (1/1) ... [2021-11-07 01:13:32,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@686c7fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:32, skipping insertion in model container [2021-11-07 01:13:32,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:13:32" (1/1) ... [2021-11-07 01:13:32,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:13:32,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:13:32,764 WARN L228 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_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2021-11-07 01:13:32,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:13:33,004 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:13:33,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:13:33,047 WARN L228 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_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2021-11-07 01:13:33,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:13:33,207 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:13:33,230 WARN L228 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_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2021-11-07 01:13:33,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:13:33,370 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:13:33,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33 WrapperNode [2021-11-07 01:13:33,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:13:33,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:13:33,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:13:33,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:13:33,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:13:33,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:13:33,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:13:33,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:13:33,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:13:33,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:13:33,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:13:33,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:13:33,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (1/1) ... [2021-11-07 01:13:33,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:13:33,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:13:33,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:13:33,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:13:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:13:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:13:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:13:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:13:36,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:13:36,770 INFO L299 CfgBuilder]: Removed 282 assume(true) statements. [2021-11-07 01:13:36,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:13:36 BoogieIcfgContainer [2021-11-07 01:13:36,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:13:36,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:13:36,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:13:36,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:13:36,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:13:32" (1/3) ... [2021-11-07 01:13:36,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8728d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:13:36, skipping insertion in model container [2021-11-07 01:13:36,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:33" (2/3) ... [2021-11-07 01:13:36,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8728d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:13:36, skipping insertion in model container [2021-11-07 01:13:36,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:13:36" (3/3) ... [2021-11-07 01:13:36,783 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2021-11-07 01:13:36,789 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:13:36,790 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:13:36,851 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:13:36,866 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:13:36,867 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:13:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 191 states have (on average 1.5549738219895288) internal successors, (297), 194 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:36,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:13:36,932 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:36,933 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:36,934 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:36,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1201783907, now seen corresponding path program 1 times [2021-11-07 01:13:36,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:36,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847206882] [2021-11-07 01:13:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:36,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:36,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:36,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:36,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:13:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:37,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:13:37,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:37,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:37,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:37,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847206882] [2021-11-07 01:13:37,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847206882] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:37,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:37,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:13:37,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100979774] [2021-11-07 01:13:37,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:13:37,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:13:37,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:13:37,459 INFO L87 Difference]: Start difference. First operand has 195 states, 191 states have (on average 1.5549738219895288) internal successors, (297), 194 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:37,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:37,513 INFO L93 Difference]: Finished difference Result 384 states and 587 transitions. [2021-11-07 01:13:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:13:37,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 01:13:37,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:37,529 INFO L225 Difference]: With dead ends: 384 [2021-11-07 01:13:37,529 INFO L226 Difference]: Without dead ends: 191 [2021-11-07 01:13:37,534 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:13:37,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-07 01:13:37,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2021-11-07 01:13:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 188 states have (on average 1.5159574468085106) internal successors, (285), 190 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 285 transitions. [2021-11-07 01:13:37,596 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 285 transitions. Word has length 18 [2021-11-07 01:13:37,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:37,597 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 285 transitions. [2021-11-07 01:13:37,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 285 transitions. [2021-11-07 01:13:37,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 01:13:37,599 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:37,600 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:37,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:37,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:37,822 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:37,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:37,825 INFO L85 PathProgramCache]: Analyzing trace with hash 290753154, now seen corresponding path program 1 times [2021-11-07 01:13:37,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:37,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029938906] [2021-11-07 01:13:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:37,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:37,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:37,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:37,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:13:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:38,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:13:38,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:38,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:38,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:38,270 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:38,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029938906] [2021-11-07 01:13:38,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029938906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:38,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:38,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:13:38,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856109982] [2021-11-07 01:13:38,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:13:38,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:38,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:13:38,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:13:38,283 INFO L87 Difference]: Start difference. First operand 191 states and 285 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:38,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:38,327 INFO L93 Difference]: Finished difference Result 191 states and 285 transitions. [2021-11-07 01:13:38,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:13:38,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-07 01:13:38,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:38,334 INFO L225 Difference]: With dead ends: 191 [2021-11-07 01:13:38,336 INFO L226 Difference]: Without dead ends: 73 [2021-11-07 01:13:38,337 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:13:38,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-07 01:13:38,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-07 01:13:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.5) internal successors, (108), 72 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:38,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2021-11-07 01:13:38,358 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 19 [2021-11-07 01:13:38,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:38,359 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2021-11-07 01:13:38,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2021-11-07 01:13:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:13:38,362 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:38,363 INFO L513 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] [2021-11-07 01:13:38,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:38,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:38,569 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:38,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:38,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2129855336, now seen corresponding path program 1 times [2021-11-07 01:13:38,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:38,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987687441] [2021-11-07 01:13:38,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:38,572 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:38,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:38,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:38,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:13:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:38,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:13:38,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:38,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:39,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:39,040 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:39,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987687441] [2021-11-07 01:13:39,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987687441] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:39,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:39,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:13:39,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326757204] [2021-11-07 01:13:39,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:13:39,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:13:39,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:13:39,045 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:39,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:39,066 INFO L93 Difference]: Finished difference Result 140 states and 210 transitions. [2021-11-07 01:13:39,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:13:39,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 01:13:39,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:39,068 INFO L225 Difference]: With dead ends: 140 [2021-11-07 01:13:39,068 INFO L226 Difference]: Without dead ends: 73 [2021-11-07 01:13:39,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:13:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-07 01:13:39,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-07 01:13:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4861111111111112) internal successors, (107), 72 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:39,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 107 transitions. [2021-11-07 01:13:39,085 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 107 transitions. Word has length 24 [2021-11-07 01:13:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:39,086 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 107 transitions. [2021-11-07 01:13:39,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 107 transitions. [2021-11-07 01:13:39,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 01:13:39,095 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:39,095 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:39,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:39,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:39,315 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:39,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:39,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1287566232, now seen corresponding path program 1 times [2021-11-07 01:13:39,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:39,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588954307] [2021-11-07 01:13:39,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:39,318 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:39,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:39,319 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:39,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:13:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:39,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:13:39,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:39,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:39,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:39,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:39,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588954307] [2021-11-07 01:13:39,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588954307] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:39,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:39,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:13:39,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421761553] [2021-11-07 01:13:39,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:13:39,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:39,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:13:39,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:13:39,782 INFO L87 Difference]: Start difference. First operand 73 states and 107 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:39,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:39,897 INFO L93 Difference]: Finished difference Result 151 states and 223 transitions. [2021-11-07 01:13:39,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:13:39,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-07 01:13:39,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:39,899 INFO L225 Difference]: With dead ends: 151 [2021-11-07 01:13:39,899 INFO L226 Difference]: Without dead ends: 84 [2021-11-07 01:13:39,900 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:13:39,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-07 01:13:39,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2021-11-07 01:13:39,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:39,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 116 transitions. [2021-11-07 01:13:39,926 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 116 transitions. Word has length 27 [2021-11-07 01:13:39,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:39,927 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 116 transitions. [2021-11-07 01:13:39,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:39,928 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 116 transitions. [2021-11-07 01:13:39,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:13:39,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:39,929 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:39,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:13:40,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:40,157 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:40,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1887369033, now seen corresponding path program 1 times [2021-11-07 01:13:40,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:40,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203202296] [2021-11-07 01:13:40,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:40,160 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:40,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:40,161 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:40,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:13:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:40,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:13:40,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:40,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:40,670 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:40,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203202296] [2021-11-07 01:13:40,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203202296] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:40,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:40,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:13:40,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812152224] [2021-11-07 01:13:40,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:13:40,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:40,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:13:40,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:13:40,678 INFO L87 Difference]: Start difference. First operand 82 states and 116 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:40,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:40,807 INFO L93 Difference]: Finished difference Result 216 states and 303 transitions. [2021-11-07 01:13:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:13:40,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 01:13:40,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:40,810 INFO L225 Difference]: With dead ends: 216 [2021-11-07 01:13:40,810 INFO L226 Difference]: Without dead ends: 140 [2021-11-07 01:13:40,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:13:40,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-07 01:13:40,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 91. [2021-11-07 01:13:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 90 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:40,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 125 transitions. [2021-11-07 01:13:40,845 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 125 transitions. Word has length 33 [2021-11-07 01:13:40,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:40,846 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 125 transitions. [2021-11-07 01:13:40,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:40,847 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2021-11-07 01:13:40,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:13:40,851 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:40,851 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:40,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:41,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:41,074 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:41,074 INFO L85 PathProgramCache]: Analyzing trace with hash 759972940, now seen corresponding path program 1 times [2021-11-07 01:13:41,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:41,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036850516] [2021-11-07 01:13:41,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:41,076 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:41,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:41,077 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:41,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:13:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:41,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:13:41,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:41,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:41,777 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:41,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036850516] [2021-11-07 01:13:41,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036850516] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:41,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:41,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 01:13:41,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543605776] [2021-11-07 01:13:41,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:13:41,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:41,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:13:41,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:13:41,780 INFO L87 Difference]: Start difference. First operand 91 states and 125 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:42,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:42,347 INFO L93 Difference]: Finished difference Result 1039 states and 1459 transitions. [2021-11-07 01:13:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:13:42,348 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 01:13:42,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:42,356 INFO L225 Difference]: With dead ends: 1039 [2021-11-07 01:13:42,356 INFO L226 Difference]: Without dead ends: 954 [2021-11-07 01:13:42,359 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:13:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2021-11-07 01:13:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 217. [2021-11-07 01:13:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3703703703703705) internal successors, (296), 216 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 296 transitions. [2021-11-07 01:13:42,424 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 296 transitions. Word has length 33 [2021-11-07 01:13:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:42,427 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 296 transitions. [2021-11-07 01:13:42,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 296 transitions. [2021-11-07 01:13:42,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:13:42,431 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:42,431 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:42,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:42,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:42,645 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:42,646 INFO L85 PathProgramCache]: Analyzing trace with hash 906151628, now seen corresponding path program 1 times [2021-11-07 01:13:42,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:42,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892760421] [2021-11-07 01:13:42,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:42,647 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:42,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:42,649 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:42,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:13:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:42,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:13:42,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:43,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:43,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:43,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:43,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892760421] [2021-11-07 01:13:43,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892760421] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:43,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:43,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:13:43,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706986285] [2021-11-07 01:13:43,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:13:43,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:43,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:13:43,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:13:43,160 INFO L87 Difference]: Start difference. First operand 217 states and 296 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:43,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:43,273 INFO L93 Difference]: Finished difference Result 548 states and 760 transitions. [2021-11-07 01:13:43,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:13:43,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 01:13:43,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:43,278 INFO L225 Difference]: With dead ends: 548 [2021-11-07 01:13:43,278 INFO L226 Difference]: Without dead ends: 385 [2021-11-07 01:13:43,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:13:43,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-11-07 01:13:43,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 214. [2021-11-07 01:13:43,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.3615023474178405) internal successors, (290), 213 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 290 transitions. [2021-11-07 01:13:43,313 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 290 transitions. Word has length 34 [2021-11-07 01:13:43,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:43,314 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 290 transitions. [2021-11-07 01:13:43,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 290 transitions. [2021-11-07 01:13:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:13:43,315 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:43,315 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:43,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:43,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:43,531 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:43,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2003254137, now seen corresponding path program 1 times [2021-11-07 01:13:43,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:43,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165222388] [2021-11-07 01:13:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:43,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:43,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:43,534 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:43,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:13:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:43,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:13:43,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:44,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:44,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:44,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:44,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165222388] [2021-11-07 01:13:44,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165222388] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:44,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:44,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:13:44,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768506621] [2021-11-07 01:13:44,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:13:44,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:44,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:13:44,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:13:44,125 INFO L87 Difference]: Start difference. First operand 214 states and 290 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:47,203 INFO L93 Difference]: Finished difference Result 579 states and 801 transitions. [2021-11-07 01:13:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:13:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 01:13:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:47,208 INFO L225 Difference]: With dead ends: 579 [2021-11-07 01:13:47,208 INFO L226 Difference]: Without dead ends: 371 [2021-11-07 01:13:47,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:13:47,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-11-07 01:13:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 166. [2021-11-07 01:13:47,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.309090909090909) internal successors, (216), 165 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 216 transitions. [2021-11-07 01:13:47,248 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 216 transitions. Word has length 34 [2021-11-07 01:13:47,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:47,248 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 216 transitions. [2021-11-07 01:13:47,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2021-11-07 01:13:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:13:47,250 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:47,250 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:47,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 01:13:47,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:47,465 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:47,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1164317066, now seen corresponding path program 1 times [2021-11-07 01:13:47,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:47,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209165279] [2021-11-07 01:13:47,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:47,466 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:47,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:47,468 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:47,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:13:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:47,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:13:47,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:47,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:47,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:47,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209165279] [2021-11-07 01:13:47,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209165279] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:47,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:47,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:13:47,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110571078] [2021-11-07 01:13:47,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:13:47,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:47,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:13:47,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:13:47,964 INFO L87 Difference]: Start difference. First operand 166 states and 216 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:48,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:48,054 INFO L93 Difference]: Finished difference Result 449 states and 591 transitions. [2021-11-07 01:13:48,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:13:48,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 01:13:48,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:48,057 INFO L225 Difference]: With dead ends: 449 [2021-11-07 01:13:48,057 INFO L226 Difference]: Without dead ends: 289 [2021-11-07 01:13:48,058 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:13:48,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-07 01:13:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 166. [2021-11-07 01:13:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.290909090909091) internal successors, (213), 165 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:48,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 213 transitions. [2021-11-07 01:13:48,083 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 213 transitions. Word has length 34 [2021-11-07 01:13:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:48,083 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 213 transitions. [2021-11-07 01:13:48,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:48,084 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 213 transitions. [2021-11-07 01:13:48,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 01:13:48,085 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:48,085 INFO L513 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:48,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:48,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:48,298 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:48,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash -174764895, now seen corresponding path program 1 times [2021-11-07 01:13:48,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:48,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850288327] [2021-11-07 01:13:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:48,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:48,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:48,301 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:48,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:13:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:48,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:13:48,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:48,772 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:13:48,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:13:48,955 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:48,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850288327] [2021-11-07 01:13:48,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850288327] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:48,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:48,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:13:48,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094110479] [2021-11-07 01:13:48,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:13:48,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:48,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:13:48,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:13:48,957 INFO L87 Difference]: Start difference. First operand 166 states and 213 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:52,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:52,265 INFO L93 Difference]: Finished difference Result 555 states and 736 transitions. [2021-11-07 01:13:52,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:13:52,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 01:13:52,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:52,269 INFO L225 Difference]: With dead ends: 555 [2021-11-07 01:13:52,270 INFO L226 Difference]: Without dead ends: 443 [2021-11-07 01:13:52,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:13:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-11-07 01:13:52,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 375. [2021-11-07 01:13:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 374 states have (on average 1.3021390374331552) internal successors, (487), 374 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 487 transitions. [2021-11-07 01:13:52,331 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 487 transitions. Word has length 52 [2021-11-07 01:13:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:52,332 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 487 transitions. [2021-11-07 01:13:52,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 487 transitions. [2021-11-07 01:13:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 01:13:52,333 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:52,334 INFO L513 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:52,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:52,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:52,548 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:52,549 INFO L85 PathProgramCache]: Analyzing trace with hash 99994719, now seen corresponding path program 1 times [2021-11-07 01:13:52,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:52,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002496714] [2021-11-07 01:13:52,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:52,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:52,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:52,551 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:52,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:13:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:52,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:13:52,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:53,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:13:53,287 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:53,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002496714] [2021-11-07 01:13:53,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002496714] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:53,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:53,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:13:53,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437894736] [2021-11-07 01:13:53,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:13:53,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:53,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:13:53,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:13:53,289 INFO L87 Difference]: Start difference. First operand 375 states and 487 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:53,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:13:53,613 INFO L93 Difference]: Finished difference Result 1922 states and 2461 transitions. [2021-11-07 01:13:53,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:13:53,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 01:13:53,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:13:53,624 INFO L225 Difference]: With dead ends: 1922 [2021-11-07 01:13:53,624 INFO L226 Difference]: Without dead ends: 1553 [2021-11-07 01:13:53,625 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:13:53,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2021-11-07 01:13:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 742. [2021-11-07 01:13:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.2672064777327936) internal successors, (939), 741 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:53,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 939 transitions. [2021-11-07 01:13:53,754 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 939 transitions. Word has length 52 [2021-11-07 01:13:53,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:13:53,755 INFO L470 AbstractCegarLoop]: Abstraction has 742 states and 939 transitions. [2021-11-07 01:13:53,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:13:53,755 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 939 transitions. [2021-11-07 01:13:53,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 01:13:53,756 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:13:53,757 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:13:53,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:13:53,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:13:53,970 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:13:53,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:13:53,971 INFO L85 PathProgramCache]: Analyzing trace with hash -42529499, now seen corresponding path program 1 times [2021-11-07 01:13:53,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:13:53,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376213696] [2021-11-07 01:13:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:53,972 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:13:53,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:13:53,973 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:13:53,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:13:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:54,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:13:54,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:13:54,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:54,776 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:13:54,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:54,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376213696] [2021-11-07 01:13:54,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376213696] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:13:54,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1122880855] [2021-11-07 01:13:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:54,777 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:13:54,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:13:54,784 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:13:54,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-07 01:13:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:55,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:13:55,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:13:55,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:13:55,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1122880855] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:13:55,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408161172] [2021-11-07 01:13:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:13:55,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:13:55,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:13:55,676 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:13:55,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 01:13:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:13:56,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:13:56,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:13:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:13:56,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:13:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:13:56,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408161172] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:13:56,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:13:56,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-11-07 01:13:56,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413823133] [2021-11-07 01:13:56,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:13:56,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:56,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:13:56,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:13:56,510 INFO L87 Difference]: Start difference. First operand 742 states and 939 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:00,061 INFO L93 Difference]: Finished difference Result 1834 states and 2307 transitions. [2021-11-07 01:14:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:14:00,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 01:14:00,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:00,069 INFO L225 Difference]: With dead ends: 1834 [2021-11-07 01:14:00,069 INFO L226 Difference]: Without dead ends: 1098 [2021-11-07 01:14:00,070 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:14:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-11-07 01:14:00,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 658. [2021-11-07 01:14:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 657 states have (on average 1.234398782343988) internal successors, (811), 657 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 811 transitions. [2021-11-07 01:14:00,165 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 811 transitions. Word has length 53 [2021-11-07 01:14:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:00,166 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 811 transitions. [2021-11-07 01:14:00,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 811 transitions. [2021-11-07 01:14:00,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:14:00,167 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:00,168 INFO L513 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:14:00,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:00,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-11-07 01:14:00,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:00,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:14:00,781 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:14:00,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash 280626892, now seen corresponding path program 1 times [2021-11-07 01:14:00,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:00,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697768047] [2021-11-07 01:14:00,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:00,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:00,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:00,786 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:00,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:14:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:01,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:14:01,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:01,485 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:14:01,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:01,636 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:14:01,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:01,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697768047] [2021-11-07 01:14:01,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697768047] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:14:01,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:14:01,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:14:01,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111167000] [2021-11-07 01:14:01,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:14:01,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:01,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:14:01,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:14:01,638 INFO L87 Difference]: Start difference. First operand 658 states and 811 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:03,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:03,659 INFO L93 Difference]: Finished difference Result 2567 states and 3159 transitions. [2021-11-07 01:14:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:14:03,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 01:14:03,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:03,672 INFO L225 Difference]: With dead ends: 2567 [2021-11-07 01:14:03,672 INFO L226 Difference]: Without dead ends: 2003 [2021-11-07 01:14:03,674 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:14:03,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2021-11-07 01:14:03,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 842. [2021-11-07 01:14:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.224732461355529) internal successors, (1030), 841 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:03,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1030 transitions. [2021-11-07 01:14:03,837 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1030 transitions. Word has length 54 [2021-11-07 01:14:03,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:03,837 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1030 transitions. [2021-11-07 01:14:03,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:03,838 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1030 transitions. [2021-11-07 01:14:03,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:14:03,839 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:03,839 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:14:03,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:04,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:14:04,052 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:14:04,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:04,053 INFO L85 PathProgramCache]: Analyzing trace with hash 103606007, now seen corresponding path program 1 times [2021-11-07 01:14:04,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:04,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828357225] [2021-11-07 01:14:04,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:04,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:04,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:04,055 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:04,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-07 01:14:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:04,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:14:04,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:14:04,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:04,707 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:14:04,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:04,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828357225] [2021-11-07 01:14:04,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828357225] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:14:04,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:14:04,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:14:04,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356508775] [2021-11-07 01:14:04,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:14:04,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:04,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:14:04,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:14:04,712 INFO L87 Difference]: Start difference. First operand 842 states and 1030 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:05,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:05,199 INFO L93 Difference]: Finished difference Result 3214 states and 3960 transitions. [2021-11-07 01:14:05,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:14:05,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 01:14:05,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:05,213 INFO L225 Difference]: With dead ends: 3214 [2021-11-07 01:14:05,214 INFO L226 Difference]: Without dead ends: 2466 [2021-11-07 01:14:05,215 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:14:05,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2021-11-07 01:14:05,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 842. [2021-11-07 01:14:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.2187871581450653) internal successors, (1025), 841 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1025 transitions. [2021-11-07 01:14:05,382 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1025 transitions. Word has length 54 [2021-11-07 01:14:05,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:05,383 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1025 transitions. [2021-11-07 01:14:05,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:05,383 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1025 transitions. [2021-11-07 01:14:05,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:14:05,385 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:05,385 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:14:05,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:05,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:14:05,598 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:14:05,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:05,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1991996669, now seen corresponding path program 1 times [2021-11-07 01:14:05,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:05,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077513272] [2021-11-07 01:14:05,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:05,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:05,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:05,601 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:05,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 01:14:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:06,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:14:06,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:14:06,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:14:06,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:06,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077513272] [2021-11-07 01:14:06,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077513272] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:14:06,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [407582536] [2021-11-07 01:14:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:06,521 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:14:06,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:14:06,522 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:14:06,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-07 01:14:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:07,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:14:07,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:14:07,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:14:07,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [407582536] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:14:07,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:14:07,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-07 01:14:07,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501494614] [2021-11-07 01:14:07,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:14:07,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:07,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:14:07,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:14:07,370 INFO L87 Difference]: Start difference. First operand 842 states and 1025 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:07,766 INFO L93 Difference]: Finished difference Result 2947 states and 3625 transitions. [2021-11-07 01:14:07,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:14:07,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 01:14:07,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:07,778 INFO L225 Difference]: With dead ends: 2947 [2021-11-07 01:14:07,778 INFO L226 Difference]: Without dead ends: 2199 [2021-11-07 01:14:07,781 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:14:07,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2021-11-07 01:14:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 869. [2021-11-07 01:14:07,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.2119815668202765) internal successors, (1052), 868 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:07,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1052 transitions. [2021-11-07 01:14:07,972 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1052 transitions. Word has length 60 [2021-11-07 01:14:07,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:07,973 INFO L470 AbstractCegarLoop]: Abstraction has 869 states and 1052 transitions. [2021-11-07 01:14:07,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1052 transitions. [2021-11-07 01:14:07,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:14:07,975 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:07,975 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:14:07,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:08,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2021-11-07 01:14:08,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:14:08,388 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:14:08,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:08,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1733831231, now seen corresponding path program 1 times [2021-11-07 01:14:08,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:08,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924297266] [2021-11-07 01:14:08,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:08,390 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:08,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:08,391 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:08,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-07 01:14:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:08,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:14:08,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:14:09,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:14:09,417 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:09,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924297266] [2021-11-07 01:14:09,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924297266] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:14:09,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [949215907] [2021-11-07 01:14:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:09,418 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:14:09,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:14:09,421 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:14:09,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-07 01:14:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:10,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:14:10,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:10,548 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:14:10,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:10,787 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:14:10,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [949215907] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:14:10,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769363301] [2021-11-07 01:14:10,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:10,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:14:10,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:14:10,788 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:14:10,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-07 01:14:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:11,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:14:11,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:14:11,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:14:11,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769363301] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:14:11,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:14:11,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-11-07 01:14:11,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19243848] [2021-11-07 01:14:11,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:14:11,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:11,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:14:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:14:11,781 INFO L87 Difference]: Start difference. First operand 869 states and 1052 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:14,663 INFO L93 Difference]: Finished difference Result 5628 states and 6888 transitions. [2021-11-07 01:14:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-07 01:14:14,664 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 01:14:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:14,687 INFO L225 Difference]: With dead ends: 5628 [2021-11-07 01:14:14,688 INFO L226 Difference]: Without dead ends: 4853 [2021-11-07 01:14:14,690 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2021-11-07 01:14:14,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2021-11-07 01:14:14,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 1064. [2021-11-07 01:14:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 1063 states have (on average 1.2229539040451551) internal successors, (1300), 1063 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1300 transitions. [2021-11-07 01:14:14,943 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1300 transitions. Word has length 60 [2021-11-07 01:14:14,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:14,943 INFO L470 AbstractCegarLoop]: Abstraction has 1064 states and 1300 transitions. [2021-11-07 01:14:14,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:14,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1300 transitions. [2021-11-07 01:14:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-07 01:14:14,947 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:14,947 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1] [2021-11-07 01:14:14,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:15,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:15,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:15,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:14:15,573 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:14:15,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:15,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1648415651, now seen corresponding path program 1 times [2021-11-07 01:14:15,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:15,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684625164] [2021-11-07 01:14:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:15,574 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:15,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:15,575 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:15,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-07 01:14:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:16,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:14:16,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:16,441 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-07 01:14:16,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-07 01:14:16,701 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:16,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684625164] [2021-11-07 01:14:16,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684625164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:14:16,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:14:16,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:14:16,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582592007] [2021-11-07 01:14:16,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:14:16,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:16,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:14:16,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:14:16,703 INFO L87 Difference]: Start difference. First operand 1064 states and 1300 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:16,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:16,882 INFO L93 Difference]: Finished difference Result 2271 states and 2783 transitions. [2021-11-07 01:14:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:14:16,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-11-07 01:14:16,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:16,889 INFO L225 Difference]: With dead ends: 2271 [2021-11-07 01:14:16,889 INFO L226 Difference]: Without dead ends: 1213 [2021-11-07 01:14:16,890 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:14:16,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2021-11-07 01:14:17,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1014. [2021-11-07 01:14:17,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1013 states have (on average 1.2201382033563672) internal successors, (1236), 1013 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:17,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1236 transitions. [2021-11-07 01:14:17,105 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1236 transitions. Word has length 109 [2021-11-07 01:14:17,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:17,106 INFO L470 AbstractCegarLoop]: Abstraction has 1014 states and 1236 transitions. [2021-11-07 01:14:17,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:17,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1236 transitions. [2021-11-07 01:14:17,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-07 01:14:17,110 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:17,110 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1] [2021-11-07 01:14:17,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:17,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:14:17,326 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:14:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:17,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1035911456, now seen corresponding path program 1 times [2021-11-07 01:14:17,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:17,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160996852] [2021-11-07 01:14:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:17,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:17,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:17,328 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:17,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-07 01:14:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:17,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:14:17,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-07 01:14:18,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-07 01:14:18,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:18,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160996852] [2021-11-07 01:14:18,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160996852] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:14:18,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:14:18,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 01:14:18,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774171244] [2021-11-07 01:14:18,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:14:18,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:18,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:14:18,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:14:18,681 INFO L87 Difference]: Start difference. First operand 1014 states and 1236 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:22,240 INFO L93 Difference]: Finished difference Result 3063 states and 3718 transitions. [2021-11-07 01:14:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:14:22,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-11-07 01:14:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:22,251 INFO L225 Difference]: With dead ends: 3063 [2021-11-07 01:14:22,251 INFO L226 Difference]: Without dead ends: 2055 [2021-11-07 01:14:22,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:14:22,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2021-11-07 01:14:22,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 900. [2021-11-07 01:14:22,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 899 states have (on average 1.2113459399332591) internal successors, (1089), 899 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:22,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1089 transitions. [2021-11-07 01:14:22,426 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1089 transitions. Word has length 135 [2021-11-07 01:14:22,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:22,426 INFO L470 AbstractCegarLoop]: Abstraction has 900 states and 1089 transitions. [2021-11-07 01:14:22,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:22,427 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1089 transitions. [2021-11-07 01:14:22,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-07 01:14:22,430 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:22,430 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1] [2021-11-07 01:14:22,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:22,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:14:22,645 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:14:22,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:22,645 INFO L85 PathProgramCache]: Analyzing trace with hash -996229845, now seen corresponding path program 1 times [2021-11-07 01:14:22,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:22,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080662408] [2021-11-07 01:14:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:22,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:22,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:22,647 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:22,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-07 01:14:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:23,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:14:23,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 99 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-07 01:14:23,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 99 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-07 01:14:24,216 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:24,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080662408] [2021-11-07 01:14:24,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080662408] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:14:24,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [94823485] [2021-11-07 01:14:24,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:24,217 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:14:24,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:14:24,217 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:14:24,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-11-07 01:14:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:25,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:14:25,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:14:25,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:14:26,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [94823485] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:14:26,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067453451] [2021-11-07 01:14:26,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:14:26,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:14:26,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:14:26,224 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:14:26,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-07 01:14:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:14:27,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:14:27,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-07 01:14:27,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-07 01:14:28,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067453451] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 01:14:28,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-11-07 01:14:28,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 8, 8, 8] total 24 [2021-11-07 01:14:28,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35523006] [2021-11-07 01:14:28,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:14:28,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:28,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:14:28,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2021-11-07 01:14:28,014 INFO L87 Difference]: Start difference. First operand 900 states and 1089 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:31,513 INFO L93 Difference]: Finished difference Result 3817 states and 4660 transitions. [2021-11-07 01:14:31,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:14:31,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-11-07 01:14:31,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:31,534 INFO L225 Difference]: With dead ends: 3817 [2021-11-07 01:14:31,534 INFO L226 Difference]: Without dead ends: 2923 [2021-11-07 01:14:31,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2021-11-07 01:14:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-11-07 01:14:31,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1018. [2021-11-07 01:14:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1017 states have (on average 1.2114060963618485) internal successors, (1232), 1017 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1232 transitions. [2021-11-07 01:14:31,719 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1232 transitions. Word has length 141 [2021-11-07 01:14:31,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:31,720 INFO L470 AbstractCegarLoop]: Abstraction has 1018 states and 1232 transitions. [2021-11-07 01:14:31,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1232 transitions. [2021-11-07 01:14:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-07 01:14:31,724 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:14:31,724 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1] [2021-11-07 01:14:31,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-11-07 01:14:31,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:32,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:32,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:14:32,341 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:14:32,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:14:32,341 INFO L85 PathProgramCache]: Analyzing trace with hash 569861295, now seen corresponding path program 2 times [2021-11-07 01:14:32,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:14:32,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670944278] [2021-11-07 01:14:32,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:14:32,342 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:14:32,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:14:32,343 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:14:32,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-07 01:14:34,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:14:34,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:14:34,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:14:34,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:14:35,142 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-07 01:14:35,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-07 01:14:35,483 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:14:35,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670944278] [2021-11-07 01:14:35,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670944278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:14:35,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:14:35,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:14:35,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695677363] [2021-11-07 01:14:35,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:14:35,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:14:35,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:14:35,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:14:35,486 INFO L87 Difference]: Start difference. First operand 1018 states and 1232 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:35,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:14:35,601 INFO L93 Difference]: Finished difference Result 1329 states and 1599 transitions. [2021-11-07 01:14:35,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:14:35,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-11-07 01:14:35,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:14:35,602 INFO L225 Difference]: With dead ends: 1329 [2021-11-07 01:14:35,602 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:14:35,604 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:14:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:14:35,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:14:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:14:35,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 141 [2021-11-07 01:14:35,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:14:35,605 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:14:35,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:14:35,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:14:35,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:14:35,609 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:14:35,609 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:14:35,610 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:14:35,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-07 01:14:35,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:14:35,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:14:35,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:35,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:36,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:38,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:39,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:40,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:41,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:41,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:41,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:41,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:14:41,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:15:00,324 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-07 01:15:00,324 INFO L853 garLoopResultBuilder]: At program point L498(lines 493 501) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ULTIMATE.start_processEnvironment_~tmp~3 (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) [2021-11-07 01:15:00,324 INFO L853 garLoopResultBuilder]: At program point L498-1(lines 493 501) the Hoare annotation is: false [2021-11-07 01:15:00,325 INFO L853 garLoopResultBuilder]: At program point L498-2(lines 493 501) the Hoare annotation is: false [2021-11-07 01:15:00,325 INFO L853 garLoopResultBuilder]: At program point L498-3(lines 493 501) the Hoare annotation is: false [2021-11-07 01:15:00,325 INFO L853 garLoopResultBuilder]: At program point L498-4(lines 493 501) the Hoare annotation is: false [2021-11-07 01:15:00,325 INFO L853 garLoopResultBuilder]: At program point L498-5(lines 493 501) the Hoare annotation is: false [2021-11-07 01:15:00,325 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 284) no Hoare annotation was computed. [2021-11-07 01:15:00,325 INFO L857 garLoopResultBuilder]: For program point L267-1(lines 267 284) no Hoare annotation was computed. [2021-11-07 01:15:00,325 INFO L857 garLoopResultBuilder]: For program point L267-2(lines 267 284) no Hoare annotation was computed. [2021-11-07 01:15:00,326 INFO L860 garLoopResultBuilder]: At program point L994(lines 975 997) the Hoare annotation is: true [2021-11-07 01:15:00,326 INFO L853 garLoopResultBuilder]: At program point L962(lines 958 964) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:15:00,326 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,326 INFO L857 garLoopResultBuilder]: For program point L369-2(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,326 INFO L857 garLoopResultBuilder]: For program point L369-3(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,326 INFO L857 garLoopResultBuilder]: For program point L369-5(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,326 INFO L857 garLoopResultBuilder]: For program point L369-6(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,327 INFO L857 garLoopResultBuilder]: For program point L369-8(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,327 INFO L857 garLoopResultBuilder]: For program point L369-9(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,327 INFO L857 garLoopResultBuilder]: For program point L369-11(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,327 INFO L857 garLoopResultBuilder]: For program point L369-12(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,327 INFO L857 garLoopResultBuilder]: For program point L369-14(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,327 INFO L857 garLoopResultBuilder]: For program point L369-15(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,327 INFO L857 garLoopResultBuilder]: For program point L369-17(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,328 INFO L857 garLoopResultBuilder]: For program point L369-18(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,328 INFO L857 garLoopResultBuilder]: For program point L369-20(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,328 INFO L857 garLoopResultBuilder]: For program point L369-21(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,328 INFO L857 garLoopResultBuilder]: For program point L369-23(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,328 INFO L857 garLoopResultBuilder]: For program point L369-24(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,328 INFO L857 garLoopResultBuilder]: For program point L369-26(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,329 INFO L857 garLoopResultBuilder]: For program point L369-27(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,329 INFO L857 garLoopResultBuilder]: For program point L369-29(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,329 INFO L857 garLoopResultBuilder]: For program point L369-30(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,329 INFO L857 garLoopResultBuilder]: For program point L369-32(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,329 INFO L857 garLoopResultBuilder]: For program point L369-33(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,329 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 279) no Hoare annotation was computed. [2021-11-07 01:15:00,329 INFO L857 garLoopResultBuilder]: For program point L271-1(lines 271 279) no Hoare annotation was computed. [2021-11-07 01:15:00,330 INFO L857 garLoopResultBuilder]: For program point L369-35(lines 369 373) no Hoare annotation was computed. [2021-11-07 01:15:00,330 INFO L857 garLoopResultBuilder]: For program point L271-2(lines 271 279) no Hoare annotation was computed. [2021-11-07 01:15:00,330 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 152) no Hoare annotation was computed. [2021-11-07 01:15:00,330 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-07 01:15:00,330 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2021-11-07 01:15:00,330 INFO L857 garLoopResultBuilder]: For program point L406-3(lines 406 410) no Hoare annotation was computed. [2021-11-07 01:15:00,330 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 258) no Hoare annotation was computed. [2021-11-07 01:15:00,331 INFO L857 garLoopResultBuilder]: For program point L241-1(lines 241 258) no Hoare annotation was computed. [2021-11-07 01:15:00,331 INFO L857 garLoopResultBuilder]: For program point L406-6(lines 406 410) no Hoare annotation was computed. [2021-11-07 01:15:00,331 INFO L857 garLoopResultBuilder]: For program point L241-2(lines 241 258) no Hoare annotation was computed. [2021-11-07 01:15:00,331 INFO L857 garLoopResultBuilder]: For program point L241-3(lines 241 258) no Hoare annotation was computed. [2021-11-07 01:15:00,331 INFO L857 garLoopResultBuilder]: For program point L241-4(lines 241 258) no Hoare annotation was computed. [2021-11-07 01:15:00,331 INFO L857 garLoopResultBuilder]: For program point L241-5(lines 241 258) no Hoare annotation was computed. [2021-11-07 01:15:00,331 INFO L853 garLoopResultBuilder]: At program point L375(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,332 INFO L853 garLoopResultBuilder]: At program point L375-1(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,332 INFO L853 garLoopResultBuilder]: At program point L375-2(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,332 INFO L853 garLoopResultBuilder]: At program point L375-3(lines 360 378) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse4 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv1 32))) (.cse9 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse10 (= ~waterLevel~0 (_ bv2 32))) (.cse12 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse13 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse14 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse6 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse8 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse0 .cse10 .cse11 .cse12 .cse3 .cse13 .cse14 .cse8) (and .cse0 .cse1 .cse11 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8) (and .cse9 .cse0 .cse10 .cse12 .cse3 .cse13 .cse14 .cse6 .cse8))) [2021-11-07 01:15:00,332 INFO L853 garLoopResultBuilder]: At program point L375-4(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,332 INFO L853 garLoopResultBuilder]: At program point L375-5(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,333 INFO L853 garLoopResultBuilder]: At program point L375-6(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,333 INFO L853 garLoopResultBuilder]: At program point L375-7(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,333 INFO L853 garLoopResultBuilder]: At program point L375-8(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,333 INFO L853 garLoopResultBuilder]: At program point L375-9(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,333 INFO L853 garLoopResultBuilder]: At program point L375-10(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,333 INFO L853 garLoopResultBuilder]: At program point L375-11(lines 360 378) the Hoare annotation is: false [2021-11-07 01:15:00,333 INFO L853 garLoopResultBuilder]: At program point L475(lines 470 478) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0)) (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) .cse0 (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)) .cse3 .cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2021-11-07 01:15:00,334 INFO L853 garLoopResultBuilder]: At program point L475-1(lines 470 478) the Hoare annotation is: false [2021-11-07 01:15:00,334 INFO L853 garLoopResultBuilder]: At program point L475-2(lines 470 478) the Hoare annotation is: false [2021-11-07 01:15:00,334 INFO L857 garLoopResultBuilder]: For program point L112(lines 111 156) no Hoare annotation was computed. [2021-11-07 01:15:00,334 INFO L853 garLoopResultBuilder]: At program point L443(lines 438 446) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse4 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))))) [2021-11-07 01:15:00,334 INFO L853 garLoopResultBuilder]: At program point L443-1(lines 438 446) the Hoare annotation is: (let ((.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse8 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse12 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse5 .cse9 .cse7 .cse8 .cse10) (and .cse1 .cse11 .cse12 .cse5 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse4 .cse12 .cse5 .cse6))) [2021-11-07 01:15:00,335 INFO L853 garLoopResultBuilder]: At program point L443-2(lines 438 446) the Hoare annotation is: false [2021-11-07 01:15:00,335 INFO L853 garLoopResultBuilder]: At program point L443-3(lines 438 446) the Hoare annotation is: false [2021-11-07 01:15:00,335 INFO L853 garLoopResultBuilder]: At program point L311(lines 304 314) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse4 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv1 32)) .cse3 .cse4 .cse5 .cse6 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv0 32)) .cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse4 .cse5 .cse6))) [2021-11-07 01:15:00,335 INFO L853 garLoopResultBuilder]: At program point L443-4(lines 438 446) the Hoare annotation is: false [2021-11-07 01:15:00,335 INFO L853 garLoopResultBuilder]: At program point L311-1(lines 304 314) the Hoare annotation is: false [2021-11-07 01:15:00,336 INFO L853 garLoopResultBuilder]: At program point L443-5(lines 438 446) the Hoare annotation is: false [2021-11-07 01:15:00,336 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 253) no Hoare annotation was computed. [2021-11-07 01:15:00,336 INFO L853 garLoopResultBuilder]: At program point L311-2(lines 304 314) the Hoare annotation is: false [2021-11-07 01:15:00,336 INFO L857 garLoopResultBuilder]: For program point L245-1(lines 245 253) no Hoare annotation was computed. [2021-11-07 01:15:00,336 INFO L857 garLoopResultBuilder]: For program point L245-2(lines 245 253) no Hoare annotation was computed. [2021-11-07 01:15:00,336 INFO L857 garLoopResultBuilder]: For program point L245-3(lines 245 253) no Hoare annotation was computed. [2021-11-07 01:15:00,337 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 117) no Hoare annotation was computed. [2021-11-07 01:15:00,337 INFO L857 garLoopResultBuilder]: For program point L245-4(lines 245 253) no Hoare annotation was computed. [2021-11-07 01:15:00,337 INFO L857 garLoopResultBuilder]: For program point L245-5(lines 245 253) no Hoare annotation was computed. [2021-11-07 01:15:00,337 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 151) no Hoare annotation was computed. [2021-11-07 01:15:00,337 INFO L857 garLoopResultBuilder]: For program point L147-2(lines 183 189) no Hoare annotation was computed. [2021-11-07 01:15:00,337 INFO L857 garLoopResultBuilder]: For program point L512(lines 512 532) no Hoare annotation was computed. [2021-11-07 01:15:00,337 INFO L857 garLoopResultBuilder]: For program point L512-2(lines 512 532) no Hoare annotation was computed. [2021-11-07 01:15:00,337 INFO L857 garLoopResultBuilder]: For program point L512-4(lines 512 532) no Hoare annotation was computed. [2021-11-07 01:15:00,338 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,338 INFO L857 garLoopResultBuilder]: For program point L215-1(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,338 INFO L857 garLoopResultBuilder]: For program point L215-2(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,338 INFO L857 garLoopResultBuilder]: For program point L215-3(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,338 INFO L857 garLoopResultBuilder]: For program point L215-4(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,338 INFO L857 garLoopResultBuilder]: For program point L215-5(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,338 INFO L857 garLoopResultBuilder]: For program point L215-6(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,339 INFO L857 garLoopResultBuilder]: For program point L215-7(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,339 INFO L857 garLoopResultBuilder]: For program point L215-8(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,339 INFO L857 garLoopResultBuilder]: For program point L215-9(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,339 INFO L857 garLoopResultBuilder]: For program point L215-10(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,339 INFO L857 garLoopResultBuilder]: For program point L215-11(lines 215 232) no Hoare annotation was computed. [2021-11-07 01:15:00,339 INFO L853 garLoopResultBuilder]: At program point L183(lines 182 201) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse7 (= (_ bv1 32) ~pumpRunning~0)) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse5 .cse4) (and .cse6 .cse0 .cse7 .cse8 .cse3 .cse9 .cse10 .cse5) (and .cse0 .cse3 .cse9 .cse5 .cse4) (and .cse6 .cse0 .cse7 .cse2 .cse8 .cse3 .cse9 .cse10) (and .cse0 .cse2 .cse3 .cse9 .cse4))) [2021-11-07 01:15:00,339 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 183 189) no Hoare annotation was computed. [2021-11-07 01:15:00,340 INFO L853 garLoopResultBuilder]: At program point L183-2(lines 182 201) the Hoare annotation is: false [2021-11-07 01:15:00,340 INFO L853 garLoopResultBuilder]: At program point L84(lines 1 997) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:15:00,340 INFO L853 garLoopResultBuilder]: At program point L183-3(lines 182 201) the Hoare annotation is: false [2021-11-07 01:15:00,340 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:15:00,340 INFO L857 garLoopResultBuilder]: For program point L483(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,340 INFO L857 garLoopResultBuilder]: For program point L483-1(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,341 INFO L857 garLoopResultBuilder]: For program point L483-2(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,341 INFO L857 garLoopResultBuilder]: For program point L483-3(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,341 INFO L857 garLoopResultBuilder]: For program point L483-4(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,341 INFO L857 garLoopResultBuilder]: For program point L483-5(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,341 INFO L857 garLoopResultBuilder]: For program point L483-6(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,341 INFO L857 garLoopResultBuilder]: For program point L483-7(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,341 INFO L857 garLoopResultBuilder]: For program point L219(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,341 INFO L857 garLoopResultBuilder]: For program point L483-8(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,342 INFO L857 garLoopResultBuilder]: For program point L219-1(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,342 INFO L857 garLoopResultBuilder]: For program point L483-9(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,342 INFO L857 garLoopResultBuilder]: For program point L219-2(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,342 INFO L857 garLoopResultBuilder]: For program point L483-10(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,342 INFO L857 garLoopResultBuilder]: For program point L219-3(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,342 INFO L857 garLoopResultBuilder]: For program point L483-11(lines 483 489) no Hoare annotation was computed. [2021-11-07 01:15:00,342 INFO L857 garLoopResultBuilder]: For program point L219-4(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,343 INFO L857 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-11-07 01:15:00,343 INFO L857 garLoopResultBuilder]: For program point L219-5(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,343 INFO L857 garLoopResultBuilder]: For program point L219-6(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,343 INFO L857 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2021-11-07 01:15:00,343 INFO L857 garLoopResultBuilder]: For program point L219-7(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,343 INFO L857 garLoopResultBuilder]: For program point L54-2(line 54) no Hoare annotation was computed. [2021-11-07 01:15:00,343 INFO L857 garLoopResultBuilder]: For program point L219-8(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,344 INFO L857 garLoopResultBuilder]: For program point L219-9(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,344 INFO L857 garLoopResultBuilder]: For program point L219-10(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,344 INFO L857 garLoopResultBuilder]: For program point L219-11(lines 219 227) no Hoare annotation was computed. [2021-11-07 01:15:00,344 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 422) no Hoare annotation was computed. [2021-11-07 01:15:00,344 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 127) no Hoare annotation was computed. [2021-11-07 01:15:00,344 INFO L853 garLoopResultBuilder]: At program point L121-1(lines 121 127) the Hoare annotation is: (let ((.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse6 (= (_ bv1 32) ~pumpRunning~0)) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse10 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse9 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse12 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse1 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv0 32)) .cse2 .cse7 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse3 .cse8) (and .cse0 .cse9 .cse3 .cse10 .cse11 .cse12 .cse4) (and .cse5 .cse0 .cse6 .cse1 .cse9 .cse7 .cse3 .cse8 .cse11 .cse12) (and .cse0 .cse2 .cse3 .cse10 .cse4) (and .cse0 .cse1 .cse9 .cse3 .cse11 .cse12 .cse4))) [2021-11-07 01:15:00,344 INFO L853 garLoopResultBuilder]: At program point L914-2(lines 914 928) the Hoare annotation is: false [2021-11-07 01:15:00,345 INFO L857 garLoopResultBuilder]: For program point L518(lines 518 531) no Hoare annotation was computed. [2021-11-07 01:15:00,345 INFO L853 garLoopResultBuilder]: At program point L518-1(lines 1 997) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv1 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse5 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse3 (= ~waterLevel~0 (_ bv1 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse7 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse8 (= (_ bv1 32) ~pumpRunning~0)) (.cse9 (= ~waterLevel~0 (_ bv2 32))) (.cse12 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse11 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse8 .cse9 .cse1 .cse10 .cse2 .cse11 .cse4 .cse5) (and .cse0 .cse12 .cse2 .cse3 .cse6) (and .cse7 .cse0 .cse8 .cse9 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv0 32)) .cse12 .cse10 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 .cse11 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~3) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2021-11-07 01:15:00,345 INFO L857 garLoopResultBuilder]: For program point L518-2(lines 518 531) no Hoare annotation was computed. [2021-11-07 01:15:00,345 INFO L853 garLoopResultBuilder]: At program point L518-3(lines 1 997) the Hoare annotation is: false [2021-11-07 01:15:00,345 INFO L857 garLoopResultBuilder]: For program point L518-4(lines 518 531) no Hoare annotation was computed. [2021-11-07 01:15:00,345 INFO L853 garLoopResultBuilder]: At program point L518-5(lines 1 997) the Hoare annotation is: false [2021-11-07 01:15:00,346 INFO L853 garLoopResultBuilder]: At program point L320(lines 315 323) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~3) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) [2021-11-07 01:15:00,346 INFO L853 garLoopResultBuilder]: At program point L320-1(lines 315 323) the Hoare annotation is: false [2021-11-07 01:15:00,346 INFO L853 garLoopResultBuilder]: At program point L320-2(lines 315 323) the Hoare annotation is: false [2021-11-07 01:15:00,346 INFO L857 garLoopResultBuilder]: For program point L915(line 915) no Hoare annotation was computed. [2021-11-07 01:15:00,346 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,346 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,346 INFO L857 garLoopResultBuilder]: For program point L388-3(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,347 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:15:00,347 INFO L857 garLoopResultBuilder]: For program point L388-5(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,347 INFO L853 garLoopResultBuilder]: At program point L190(lines 190 196) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse8 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse6 .cse8 .cse9 .cse10) (and .cse1 .cse4 .cse6 .cse8 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse9))) [2021-11-07 01:15:00,347 INFO L857 garLoopResultBuilder]: For program point L388-6(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,347 INFO L853 garLoopResultBuilder]: At program point L157(lines 110 158) the Hoare annotation is: false [2021-11-07 01:15:00,347 INFO L853 garLoopResultBuilder]: At program point L190-1(lines 190 196) the Hoare annotation is: false [2021-11-07 01:15:00,348 INFO L857 garLoopResultBuilder]: For program point L388-8(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,348 INFO L853 garLoopResultBuilder]: At program point L190-2(lines 190 196) the Hoare annotation is: false [2021-11-07 01:15:00,348 INFO L857 garLoopResultBuilder]: For program point L388-9(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,348 INFO L857 garLoopResultBuilder]: For program point L388-11(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,348 INFO L857 garLoopResultBuilder]: For program point L388-12(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,348 INFO L857 garLoopResultBuilder]: For program point L388-14(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,348 INFO L857 garLoopResultBuilder]: For program point L388-15(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,349 INFO L857 garLoopResultBuilder]: For program point L388-17(lines 388 392) no Hoare annotation was computed. [2021-11-07 01:15:00,349 INFO L853 garLoopResultBuilder]: At program point L488(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,349 INFO L853 garLoopResultBuilder]: At program point L488-1(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,349 INFO L853 garLoopResultBuilder]: At program point L488-2(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,349 INFO L853 garLoopResultBuilder]: At program point L488-3(lines 479 492) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse7 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse3 .cse7 .cse8 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse7 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse8 .cse5))) [2021-11-07 01:15:00,349 INFO L853 garLoopResultBuilder]: At program point L488-4(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,349 INFO L853 garLoopResultBuilder]: At program point L488-5(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,350 INFO L853 garLoopResultBuilder]: At program point L488-6(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,350 INFO L853 garLoopResultBuilder]: At program point L488-7(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,350 INFO L853 garLoopResultBuilder]: At program point L488-8(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,350 INFO L853 garLoopResultBuilder]: At program point L488-9(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,350 INFO L853 garLoopResultBuilder]: At program point L488-10(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,350 INFO L853 garLoopResultBuilder]: At program point L488-11(lines 479 492) the Hoare annotation is: false [2021-11-07 01:15:00,350 INFO L853 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:15:00,351 INFO L857 garLoopResultBuilder]: For program point L918(lines 918 922) no Hoare annotation was computed. [2021-11-07 01:15:00,351 INFO L857 garLoopResultBuilder]: For program point L918-1(lines 183 189) no Hoare annotation was computed. [2021-11-07 01:15:00,351 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 528) no Hoare annotation was computed. [2021-11-07 01:15:00,351 INFO L857 garLoopResultBuilder]: For program point L522-2(lines 522 528) no Hoare annotation was computed. [2021-11-07 01:15:00,351 INFO L857 garLoopResultBuilder]: For program point L522-4(lines 522 528) no Hoare annotation was computed. [2021-11-07 01:15:00,351 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 992) no Hoare annotation was computed. [2021-11-07 01:15:00,351 INFO L860 garLoopResultBuilder]: At program point L985-1(lines 985 992) the Hoare annotation is: true [2021-11-07 01:15:00,352 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 01:15:00,352 INFO L853 garLoopResultBuilder]: At program point L394(lines 379 397) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ULTIMATE.start_processEnvironment_~tmp~3 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32))) [2021-11-07 01:15:00,352 INFO L853 garLoopResultBuilder]: At program point L394-1(lines 379 397) the Hoare annotation is: false [2021-11-07 01:15:00,352 INFO L853 garLoopResultBuilder]: At program point L394-2(lines 379 397) the Hoare annotation is: false [2021-11-07 01:15:00,352 INFO L853 garLoopResultBuilder]: At program point L394-3(lines 379 397) the Hoare annotation is: false [2021-11-07 01:15:00,352 INFO L853 garLoopResultBuilder]: At program point L394-4(lines 379 397) the Hoare annotation is: false [2021-11-07 01:15:00,353 INFO L853 garLoopResultBuilder]: At program point L394-5(lines 379 397) the Hoare annotation is: false [2021-11-07 01:15:00,353 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 137) no Hoare annotation was computed. [2021-11-07 01:15:00,353 INFO L853 garLoopResultBuilder]: At program point L131-1(lines 131 137) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse10 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse1 .cse2 .cse7 .cse3 .cse8) (and .cse0 .cse1 .cse3 .cse9 .cse4) (and .cse0 .cse3 .cse10 .cse9 .cse4) (and .cse0 .cse2 .cse3 .cse10 .cse4) (and .cse5 .cse0 .cse6 .cse1 .cse7 .cse3 .cse8 .cse9))) [2021-11-07 01:15:00,353 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 01:15:00,353 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-07 01:15:00,353 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2021-11-07 01:15:00,357 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:15:00,358 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:15:00,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:15:00 BoogieIcfgContainer [2021-11-07 01:15:00,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:15:00,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:15:00,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:15:00,395 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:15:00,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:13:36" (3/4) ... [2021-11-07 01:15:00,398 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:15:00,423 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-11-07 01:15:00,425 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-07 01:15:00,426 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-07 01:15:00,428 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-07 01:15:00,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 01:15:00,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:15:00,433 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:15:00,459 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) [2021-11-07 01:15:00,459 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32)) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:15:00,460 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) [2021-11-07 01:15:00,460 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:15:00,461 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) [2021-11-07 01:15:00,462 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) [2021-11-07 01:15:00,463 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) [2021-11-07 01:15:00,464 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) [2021-11-07 01:15:00,465 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == \result) [2021-11-07 01:15:00,466 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:15:00,467 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 1bv32) && 0bv32 == pumpRunning)) || ((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:15:00,468 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && 1bv32 == \result [2021-11-07 01:15:00,469 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32 [2021-11-07 01:15:00,470 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && tmp___0 == 1bv32 [2021-11-07 01:15:00,561 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:15:00,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:15:00,563 INFO L168 Benchmark]: Toolchain (without parser) took 88060.97 ms. Allocated memory was 52.4 MB in the beginning and 331.4 MB in the end (delta: 278.9 MB). Free memory was 27.5 MB in the beginning and 107.9 MB in the end (delta: -80.4 MB). Peak memory consumption was 198.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:00,564 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 32.4 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:15:00,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 868.50 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 27.2 MB in the beginning and 41.6 MB in the end (delta: -14.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:00,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.30 ms. Allocated memory is still 73.4 MB. Free memory was 41.6 MB in the beginning and 36.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:00,565 INFO L168 Benchmark]: Boogie Preprocessor took 147.87 ms. Allocated memory is still 73.4 MB. Free memory was 36.6 MB in the beginning and 52.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:00,566 INFO L168 Benchmark]: RCFGBuilder took 3128.21 ms. Allocated memory is still 73.4 MB. Free memory was 52.2 MB in the beginning and 37.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:00,566 INFO L168 Benchmark]: TraceAbstraction took 83618.67 ms. Allocated memory was 73.4 MB in the beginning and 331.4 MB in the end (delta: 257.9 MB). Free memory was 36.3 MB in the beginning and 123.6 MB in the end (delta: -87.4 MB). Peak memory consumption was 208.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:00,567 INFO L168 Benchmark]: Witness Printer took 166.93 ms. Allocated memory is still 331.4 MB. Free memory was 123.6 MB in the beginning and 107.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:00,569 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 52.4 MB. Free memory was 32.4 MB in the beginning and 32.4 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 868.50 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 27.2 MB in the beginning and 41.6 MB in the end (delta: -14.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.30 ms. Allocated memory is still 73.4 MB. Free memory was 41.6 MB in the beginning and 36.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 147.87 ms. Allocated memory is still 73.4 MB. Free memory was 36.6 MB in the beginning and 52.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3128.21 ms. Allocated memory is still 73.4 MB. Free memory was 52.2 MB in the beginning and 37.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 83618.67 ms. Allocated memory was 73.4 MB in the beginning and 331.4 MB in the end (delta: 257.9 MB). Free memory was 36.3 MB in the beginning and 123.6 MB in the end (delta: -87.4 MB). Peak memory consumption was 208.2 MB. Max. memory is 16.1 GB. * Witness Printer took 166.93 ms. Allocated memory is still 331.4 MB. Free memory was 123.6 MB in the beginning and 107.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 195 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 83.5s, OverallIterations: 20, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 24.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2826 SDtfs, 6687 SDslu, 7795 SDs, 0 SdLazy, 1174 SolverSat, 236 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3529 GetRequests, 3342 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1064occurred in iteration=16, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 13769 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 69 PreInvPairs, 177 NumberOfFragments, 1238 HoareAnnotationTreeSize, 69 FomulaSimplifications, 6757006802 FormulaSimplificationTreeSizeReduction, 5.4s HoareSimplificationTime, 69 FomulaSimplificationsInter, 777271236 FormulaSimplificationTreeSizeReductionInter, 19.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 1735 NumberOfCodeBlocks, 1735 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3416 ConstructedInterpolants, 0 QuantifiedInterpolants, 7096 SizeOfPredicates, 74 NumberOfNonLiveVariables, 6977 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 54 InterpolantComputations, 35 PerfectInterpolantSequences, 2216/2720 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == \result) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: (((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && tmp___0 == 1bv32 - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && 1bv32 == \result - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 958]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) - InvariantResult [Line: 914]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32)) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 985]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 975]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: ((((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 1bv32) && 0bv32 == pumpRunning)) || ((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-07 01:15:00,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0702f5b-f1ba-4d9e-99e3-5122cc78581c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE