./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c36df5364345a00481880384557a6da7ee9f3df41e2ea49d72bfaffe4fac7a5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:32:15,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:32:15,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:32:15,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:32:15,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:32:15,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:32:15,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:32:15,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:32:15,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:32:15,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:32:15,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:32:15,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:32:15,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:32:15,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:32:15,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:32:15,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:32:15,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:32:15,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:32:15,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:32:15,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:32:15,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:32:15,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:32:15,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:32:15,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:32:15,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:32:15,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:32:15,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:32:15,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:32:15,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:32:15,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:32:15,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:32:15,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:32:15,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:32:15,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:32:15,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:32:15,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:32:15,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:32:15,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:32:15,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:32:15,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:32:15,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:32:15,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 17:32:15,938 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:32:15,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:32:15,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:32:15,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:32:15,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:32:15,940 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:32:15,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:32:15,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:32:15,941 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:32:15,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:32:15,941 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:32:15,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 17:32:15,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:32:15,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:32:15,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:32:15,942 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 17:32:15,942 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 17:32:15,943 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 17:32:15,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:32:15,943 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 17:32:15,943 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:32:15,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:32:15,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:32:15,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:32:15,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:32:15,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:32:15,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:32:15,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:32:15,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:32:15,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:32:15,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:32:15,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c36df5364345a00481880384557a6da7ee9f3df41e2ea49d72bfaffe4fac7a5 [2021-12-06 17:32:16,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:32:16,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:32:16,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:32:16,173 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:32:16,174 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:32:16,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2021-12-06 17:32:16,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data/4f1da64a1/8af65e1c478c44a89c1b6870ebba8b19/FLAGbc65baf32 [2021-12-06 17:32:16,681 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:32:16,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2021-12-06 17:32:16,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data/4f1da64a1/8af65e1c478c44a89c1b6870ebba8b19/FLAGbc65baf32 [2021-12-06 17:32:16,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data/4f1da64a1/8af65e1c478c44a89c1b6870ebba8b19 [2021-12-06 17:32:16,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:32:16,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:32:16,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:32:16,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:32:16,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:32:16,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:32:16" (1/1) ... [2021-12-06 17:32:16,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d5a9928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:16, skipping insertion in model container [2021-12-06 17:32:16,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:32:16" (1/1) ... [2021-12-06 17:32:16,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:32:16,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:32:16,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:32:16,957 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) [2021-12-06 17:32:16,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29b46656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:16, skipping insertion in model container [2021-12-06 17:32:16,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:32:16,958 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-06 17:32:16,960 INFO L158 Benchmark]: Toolchain (without parser) took 253.72ms. Allocated memory is still 100.7MB. Free memory was 63.6MB in the beginning and 75.6MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 17:32:16,961 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory was 81.1MB in the beginning and 81.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:32:16,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.55ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 75.6MB in the end (delta: -12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 17:32:16,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory was 81.1MB in the beginning and 81.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.55ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 75.6MB in the end (delta: -12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 534]: 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_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c36df5364345a00481880384557a6da7ee9f3df41e2ea49d72bfaffe4fac7a5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:32:18,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:32:18,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:32:18,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:32:18,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:32:18,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:32:18,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:32:18,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:32:18,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:32:18,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:32:18,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:32:18,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:32:18,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:32:18,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:32:18,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:32:18,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:32:18,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:32:18,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:32:18,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:32:18,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:32:18,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:32:18,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:32:18,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:32:18,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:32:18,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:32:18,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:32:18,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:32:18,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:32:18,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:32:18,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:32:18,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:32:18,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:32:18,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:32:18,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:32:18,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:32:18,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:32:18,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:32:18,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:32:18,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:32:18,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:32:18,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:32:18,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-06 17:32:18,531 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:32:18,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:32:18,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:32:18,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:32:18,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:32:18,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:32:18,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:32:18,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:32:18,533 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:32:18,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:32:18,534 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:32:18,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 17:32:18,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:32:18,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:32:18,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:32:18,535 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 17:32:18,535 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 17:32:18,535 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 17:32:18,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:32:18,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 17:32:18,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 17:32:18,535 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 17:32:18,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:32:18,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:32:18,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:32:18,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:32:18,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:32:18,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:32:18,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:32:18,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:32:18,537 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 17:32:18,537 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 17:32:18,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:32:18,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 17:32:18,537 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_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c36df5364345a00481880384557a6da7ee9f3df41e2ea49d72bfaffe4fac7a5 [2021-12-06 17:32:18,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:32:18,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:32:18,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:32:18,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:32:18,805 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:32:18,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2021-12-06 17:32:18,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data/271173192/e3d17a0cd08149fd969d1a57f2340d84/FLAGa1cc02d8c [2021-12-06 17:32:19,274 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:32:19,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/sv-benchmarks/c/array-memsafety/selectionsort-alloca-1.i [2021-12-06 17:32:19,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data/271173192/e3d17a0cd08149fd969d1a57f2340d84/FLAGa1cc02d8c [2021-12-06 17:32:19,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/data/271173192/e3d17a0cd08149fd969d1a57f2340d84 [2021-12-06 17:32:19,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:32:19,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:32:19,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:32:19,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:32:19,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:32:19,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e081c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19, skipping insertion in model container [2021-12-06 17:32:19,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:32:19,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:32:19,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:32:19,544 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 17:32:19,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:32:19,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:32:19,582 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:32:19,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:32:19,641 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:32:19,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19 WrapperNode [2021-12-06 17:32:19,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:32:19,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:32:19,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:32:19,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:32:19,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,683 INFO L137 Inliner]: procedures = 117, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2021-12-06 17:32:19,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:32:19,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:32:19,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:32:19,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:32:19,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:32:19,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:32:19,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:32:19,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:32:19,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (1/1) ... [2021-12-06 17:32:19,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:32:19,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:32:19,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:32:19,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:32:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 17:32:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:32:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:32:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 17:32:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:32:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:32:19,856 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:32:19,858 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:32:20,105 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:32:20,112 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:32:20,112 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 17:32:20,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:32:20 BoogieIcfgContainer [2021-12-06 17:32:20,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:32:20,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:32:20,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:32:20,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:32:20,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:32:19" (1/3) ... [2021-12-06 17:32:20,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d3818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:32:20, skipping insertion in model container [2021-12-06 17:32:20,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:32:19" (2/3) ... [2021-12-06 17:32:20,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d3818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:32:20, skipping insertion in model container [2021-12-06 17:32:20,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:32:20" (3/3) ... [2021-12-06 17:32:20,122 INFO L111 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca-1.i [2021-12-06 17:32:20,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:32:20,128 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-12-06 17:32:20,172 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:32:20,179 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-12-06 17:32:20,179 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-12-06 17:32:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 25 states have (on average 1.92) internal successors, (48), 40 states have internal predecessors, (48), 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) [2021-12-06 17:32:20,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-06 17:32:20,199 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:20,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-06 17:32:20,200 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:20,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:20,206 INFO L85 PathProgramCache]: Analyzing trace with hash 889508873, now seen corresponding path program 1 times [2021-12-06 17:32:20,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:20,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783557722] [2021-12-06 17:32:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:20,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:20,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:20,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:20,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 17:32:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:20,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:32:20,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:20,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 17:32:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:20,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:20,366 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:20,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783557722] [2021-12-06 17:32:20,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783557722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:20,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:20,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:32:20,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552621140] [2021-12-06 17:32:20,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:20,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:32:20,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:20,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:32:20,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:32:20,393 INFO L87 Difference]: Start difference. First operand has 41 states, 25 states have (on average 1.92) internal successors, (48), 40 states have internal predecessors, (48), 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 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-06 17:32:20,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:20,484 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2021-12-06 17:32:20,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:32:20,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-12-06 17:32:20,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:20,491 INFO L225 Difference]: With dead ends: 40 [2021-12-06 17:32:20,491 INFO L226 Difference]: Without dead ends: 38 [2021-12-06 17:32:20,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:32:20,495 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 34 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:20,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 31 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:32:20,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-12-06 17:32:20,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-12-06 17:32:20,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.75) internal successors, (42), 37 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) [2021-12-06 17:32:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-12-06 17:32:20,517 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 6 [2021-12-06 17:32:20,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:20,517 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-12-06 17:32:20,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-06 17:32:20,518 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2021-12-06 17:32:20,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-06 17:32:20,518 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:20,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-06 17:32:20,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:32:20,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:20,720 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash 889508874, now seen corresponding path program 1 times [2021-12-06 17:32:20,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:20,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173280260] [2021-12-06 17:32:20,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:20,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:20,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:20,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:20,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 17:32:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:20,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:32:20,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:20,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 17:32:20,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:20,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:20,918 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:20,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173280260] [2021-12-06 17:32:20,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173280260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:20,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:20,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:32:20,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860335530] [2021-12-06 17:32:20,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:20,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:32:20,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:20,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:32:20,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:32:20,920 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 17:32:21,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:21,146 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2021-12-06 17:32:21,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:32:21,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-12-06 17:32:21,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:21,148 INFO L225 Difference]: With dead ends: 77 [2021-12-06 17:32:21,148 INFO L226 Difference]: Without dead ends: 77 [2021-12-06 17:32:21,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:32:21,149 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 43 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:21,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 145 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:32:21,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-06 17:32:21,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 41. [2021-12-06 17:32:21,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 40 states have internal predecessors, (45), 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) [2021-12-06 17:32:21,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2021-12-06 17:32:21,154 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 6 [2021-12-06 17:32:21,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:21,155 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-12-06 17:32:21,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 17:32:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2021-12-06 17:32:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-06 17:32:21,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:21,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-06 17:32:21,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 17:32:21,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:21,357 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:21,359 INFO L85 PathProgramCache]: Analyzing trace with hash 889568456, now seen corresponding path program 1 times [2021-12-06 17:32:21,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:21,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400623192] [2021-12-06 17:32:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:21,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:21,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:21,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:21,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 17:32:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:21,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:32:21,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:21,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:21,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:21,512 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:21,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400623192] [2021-12-06 17:32:21,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400623192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:21,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:21,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:32:21,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718055085] [2021-12-06 17:32:21,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:21,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:32:21,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:21,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:32:21,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:32:21,515 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 17:32:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:21,541 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2021-12-06 17:32:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:32:21,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-12-06 17:32:21,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:21,543 INFO L225 Difference]: With dead ends: 43 [2021-12-06 17:32:21,543 INFO L226 Difference]: Without dead ends: 43 [2021-12-06 17:32:21,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:32:21,544 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:21,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 94 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2021-12-06 17:32:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-06 17:32:21,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-12-06 17:32:21,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 41 states have internal predecessors, (47), 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) [2021-12-06 17:32:21,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2021-12-06 17:32:21,550 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 6 [2021-12-06 17:32:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:21,551 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2021-12-06 17:32:21,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 17:32:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2021-12-06 17:32:21,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 17:32:21,552 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:21,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:21,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 17:32:21,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:21,753 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:21,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1184052114, now seen corresponding path program 1 times [2021-12-06 17:32:21,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:21,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037842561] [2021-12-06 17:32:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:21,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:21,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:21,761 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:21,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 17:32:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:21,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:32:21,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:21,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:21,825 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:21,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037842561] [2021-12-06 17:32:21,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037842561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:21,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:21,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:32:21,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925470959] [2021-12-06 17:32:21,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:21,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:32:21,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:21,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:32:21,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:32:21,827 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-06 17:32:21,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:21,863 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2021-12-06 17:32:21,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:32:21,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-12-06 17:32:21,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:21,864 INFO L225 Difference]: With dead ends: 44 [2021-12-06 17:32:21,864 INFO L226 Difference]: Without dead ends: 44 [2021-12-06 17:32:21,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:32:21,866 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 44 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:21,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 68 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:32:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-06 17:32:21,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2021-12-06 17:32:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 39 states have internal predecessors, (44), 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) [2021-12-06 17:32:21,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-12-06 17:32:21,871 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 9 [2021-12-06 17:32:21,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:21,871 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-12-06 17:32:21,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-06 17:32:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-12-06 17:32:21,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-06 17:32:21,872 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:21,872 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:21,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 17:32:22,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:22,074 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:22,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:22,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1091210163, now seen corresponding path program 1 times [2021-12-06 17:32:22,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:22,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750489717] [2021-12-06 17:32:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:22,079 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:22,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:22,082 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:22,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 17:32:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:22,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:32:22,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:22,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:22,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:22,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:22,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750489717] [2021-12-06 17:32:22,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750489717] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:22,234 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:22,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-06 17:32:22,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810937811] [2021-12-06 17:32:22,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:22,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:32:22,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:22,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:32:22,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:32:22,236 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-12-06 17:32:22,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:22,309 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2021-12-06 17:32:22,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:32:22,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 10 [2021-12-06 17:32:22,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:22,310 INFO L225 Difference]: With dead ends: 75 [2021-12-06 17:32:22,311 INFO L226 Difference]: Without dead ends: 75 [2021-12-06 17:32:22,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:32:22,312 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 71 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:22,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 167 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:32:22,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-06 17:32:22,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 46. [2021-12-06 17:32:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.5625) internal successors, (50), 45 states have internal predecessors, (50), 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) [2021-12-06 17:32:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-12-06 17:32:22,318 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 10 [2021-12-06 17:32:22,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:22,318 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-12-06 17:32:22,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-12-06 17:32:22,318 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-12-06 17:32:22,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-06 17:32:22,319 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:22,319 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:22,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 17:32:22,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:22,520 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:22,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:22,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1900556789, now seen corresponding path program 1 times [2021-12-06 17:32:22,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:22,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774318103] [2021-12-06 17:32:22,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:22,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:22,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:22,526 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:22,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 17:32:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:22,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 17:32:22,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:22,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:22,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:23,168 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:23,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774318103] [2021-12-06 17:32:23,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774318103] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:23,169 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:23,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-12-06 17:32:23,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56013228] [2021-12-06 17:32:23,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:23,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 17:32:23,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:23,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 17:32:23,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:32:23,170 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 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) [2021-12-06 17:32:23,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:23,644 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2021-12-06 17:32:23,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:32:23,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 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 10 [2021-12-06 17:32:23,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:23,646 INFO L225 Difference]: With dead ends: 83 [2021-12-06 17:32:23,646 INFO L226 Difference]: Without dead ends: 83 [2021-12-06 17:32:23,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:32:23,647 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 72 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:23,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 189 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 37 Unchecked, 0.4s Time] [2021-12-06 17:32:23,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-12-06 17:32:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 54. [2021-12-06 17:32:23,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.5) internal successors, (60), 53 states have internal predecessors, (60), 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) [2021-12-06 17:32:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2021-12-06 17:32:23,651 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 10 [2021-12-06 17:32:23,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:23,651 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2021-12-06 17:32:23,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 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) [2021-12-06 17:32:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2021-12-06 17:32:23,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 17:32:23,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:23,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:23,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 17:32:23,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:23,854 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:23,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:23,855 INFO L85 PathProgramCache]: Analyzing trace with hash 363893229, now seen corresponding path program 1 times [2021-12-06 17:32:23,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:23,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683739491] [2021-12-06 17:32:23,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:23,857 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:23,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:23,860 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:23,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 17:32:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:23,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:32:23,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:32:26,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:26,033 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:26,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683739491] [2021-12-06 17:32:26,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683739491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:26,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:26,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:32:26,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974265737] [2021-12-06 17:32:26,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:26,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:32:26,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:26,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:32:26,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2021-12-06 17:32:26,034 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 17:32:26,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:26,038 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2021-12-06 17:32:26,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:32:26,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-12-06 17:32:26,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:26,039 INFO L225 Difference]: With dead ends: 63 [2021-12-06 17:32:26,040 INFO L226 Difference]: Without dead ends: 61 [2021-12-06 17:32:26,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2021-12-06 17:32:26,040 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 5 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:26,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 103 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2021-12-06 17:32:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-12-06 17:32:26,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2021-12-06 17:32:26,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 55 states have internal predecessors, (62), 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) [2021-12-06 17:32:26,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2021-12-06 17:32:26,044 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 13 [2021-12-06 17:32:26,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:26,044 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2021-12-06 17:32:26,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 17:32:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2021-12-06 17:32:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 17:32:26,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:26,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:26,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 17:32:26,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:26,247 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:26,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash 363893953, now seen corresponding path program 1 times [2021-12-06 17:32:26,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:26,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158283984] [2021-12-06 17:32:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:26,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:26,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:26,252 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:26,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 17:32:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:26,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 17:32:26,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:26,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:32:26,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:26,317 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:26,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158283984] [2021-12-06 17:32:26,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158283984] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:26,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:26,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:32:26,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360268830] [2021-12-06 17:32:26,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:26,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:32:26,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:26,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:32:26,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:32:26,319 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-06 17:32:26,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:26,371 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2021-12-06 17:32:26,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:32:26,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-12-06 17:32:26,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:26,372 INFO L225 Difference]: With dead ends: 56 [2021-12-06 17:32:26,372 INFO L226 Difference]: Without dead ends: 48 [2021-12-06 17:32:26,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:32:26,372 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:26,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 102 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:32:26,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-12-06 17:32:26,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-12-06 17:32:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 47 states have internal predecessors, (53), 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) [2021-12-06 17:32:26,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2021-12-06 17:32:26,376 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 13 [2021-12-06 17:32:26,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:26,376 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-12-06 17:32:26,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-06 17:32:26,376 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2021-12-06 17:32:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 17:32:26,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:26,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:26,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 17:32:26,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:26,578 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:26,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:26,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1064957807, now seen corresponding path program 1 times [2021-12-06 17:32:26,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:26,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424101365] [2021-12-06 17:32:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:26,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:26,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:26,583 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:26,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 17:32:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:26,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:32:26,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:28,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:32:28,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:28,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:28,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424101365] [2021-12-06 17:32:28,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424101365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:28,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:28,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:32:28,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14489974] [2021-12-06 17:32:28,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:28,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:32:28,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:28,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:32:28,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2021-12-06 17:32:28,779 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 17:32:28,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:28,822 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2021-12-06 17:32:28,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:32:28,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-12-06 17:32:28,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:28,823 INFO L225 Difference]: With dead ends: 56 [2021-12-06 17:32:28,823 INFO L226 Difference]: Without dead ends: 54 [2021-12-06 17:32:28,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2021-12-06 17:32:28,824 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:28,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 73 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2021-12-06 17:32:28,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-06 17:32:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-12-06 17:32:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.542857142857143) internal successors, (54), 48 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) [2021-12-06 17:32:28,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2021-12-06 17:32:28,827 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 13 [2021-12-06 17:32:28,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:28,828 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2021-12-06 17:32:28,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 17:32:28,828 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2021-12-06 17:32:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 17:32:28,828 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:28,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:28,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 17:32:29,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:29,029 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:29,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:29,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1064958531, now seen corresponding path program 1 times [2021-12-06 17:32:29,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:29,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719849576] [2021-12-06 17:32:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:29,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:29,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:29,030 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:29,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 17:32:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:29,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:32:29,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:29,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 17:32:29,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:32:29,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:29,091 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:29,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719849576] [2021-12-06 17:32:29,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719849576] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:29,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:29,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:32:29,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919469873] [2021-12-06 17:32:29,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:29,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:32:29,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:29,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:32:29,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:32:29,093 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-06 17:32:29,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:29,216 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2021-12-06 17:32:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:32:29,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-12-06 17:32:29,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:29,217 INFO L225 Difference]: With dead ends: 43 [2021-12-06 17:32:29,220 INFO L226 Difference]: Without dead ends: 43 [2021-12-06 17:32:29,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:32:29,220 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 44 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:29,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 25 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:32:29,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-06 17:32:29,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-12-06 17:32:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 42 states have internal predecessors, (48), 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) [2021-12-06 17:32:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2021-12-06 17:32:29,223 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 13 [2021-12-06 17:32:29,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:29,223 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2021-12-06 17:32:29,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-06 17:32:29,224 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2021-12-06 17:32:29,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 17:32:29,224 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:29,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:29,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-06 17:32:29,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:29,426 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:29,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1064958532, now seen corresponding path program 1 times [2021-12-06 17:32:29,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:29,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929075288] [2021-12-06 17:32:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:29,429 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:29,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:29,431 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:29,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 17:32:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:29,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 17:32:29,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:29,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:29,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:29,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:30,011 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:30,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929075288] [2021-12-06 17:32:30,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929075288] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 17:32:30,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:32:30,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-12-06 17:32:30,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939498703] [2021-12-06 17:32:30,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:30,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:32:30,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:30,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:32:30,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:32:30,012 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 17:32:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:30,409 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2021-12-06 17:32:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:32:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-12-06 17:32:30,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:30,411 INFO L225 Difference]: With dead ends: 50 [2021-12-06 17:32:30,411 INFO L226 Difference]: Without dead ends: 50 [2021-12-06 17:32:30,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:32:30,412 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 56 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:30,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 36 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 17:32:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-06 17:32:30,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-12-06 17:32:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 47 states have internal predecessors, (57), 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) [2021-12-06 17:32:30,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2021-12-06 17:32:30,414 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 13 [2021-12-06 17:32:30,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:30,414 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-12-06 17:32:30,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-06 17:32:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2021-12-06 17:32:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 17:32:30,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:30,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:30,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 17:32:30,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:30,616 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:30,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1064958578, now seen corresponding path program 1 times [2021-12-06 17:32:30,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:30,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198401108] [2021-12-06 17:32:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:30,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:30,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:30,621 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:30,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 17:32:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:30,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 17:32:30,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:30,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:32:30,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:30,816 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:30,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198401108] [2021-12-06 17:32:30,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198401108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:30,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:30,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:32:30,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038190002] [2021-12-06 17:32:30,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:30,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:32:30,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:30,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:32:30,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:32:30,818 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-06 17:32:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:31,133 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2021-12-06 17:32:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:32:31,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2021-12-06 17:32:31,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:31,134 INFO L225 Difference]: With dead ends: 64 [2021-12-06 17:32:31,134 INFO L226 Difference]: Without dead ends: 64 [2021-12-06 17:32:31,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:32:31,135 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 85 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:31,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 46 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 24 Unchecked, 0.3s Time] [2021-12-06 17:32:31,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-06 17:32:31,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2021-12-06 17:32:31,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 43 states have (on average 1.372093023255814) internal successors, (59), 49 states have internal predecessors, (59), 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) [2021-12-06 17:32:31,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2021-12-06 17:32:31,138 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 13 [2021-12-06 17:32:31,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:31,138 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2021-12-06 17:32:31,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-06 17:32:31,138 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2021-12-06 17:32:31,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 17:32:31,138 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:31,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:31,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-06 17:32:31,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:31,339 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:31,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:31,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1346022463, now seen corresponding path program 1 times [2021-12-06 17:32:31,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:31,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866920413] [2021-12-06 17:32:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:31,342 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:31,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:31,344 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:31,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 17:32:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:31,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 17:32:31,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:31,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:32,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:32:32,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:32,530 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:32,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866920413] [2021-12-06 17:32:32,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866920413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:32,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:32,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:32:32,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152767167] [2021-12-06 17:32:32,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:32,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:32:32,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:32,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:32:32,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:32:32,532 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-12-06 17:32:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:32,618 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2021-12-06 17:32:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:32:32,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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 14 [2021-12-06 17:32:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:32,618 INFO L225 Difference]: With dead ends: 51 [2021-12-06 17:32:32,618 INFO L226 Difference]: Without dead ends: 51 [2021-12-06 17:32:32,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:32:32,619 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:32,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 101 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 55 Unchecked, 0.0s Time] [2021-12-06 17:32:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-06 17:32:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-12-06 17:32:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 50 states have internal predecessors, (60), 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) [2021-12-06 17:32:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2021-12-06 17:32:32,621 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 14 [2021-12-06 17:32:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:32,621 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2021-12-06 17:32:32,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-12-06 17:32:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2021-12-06 17:32:32,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 17:32:32,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:32,622 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1] [2021-12-06 17:32:32,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-06 17:32:32,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:32,823 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:32,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:32,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1817992175, now seen corresponding path program 2 times [2021-12-06 17:32:32,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:32,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123820655] [2021-12-06 17:32:32,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:32:32,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:32,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:32,828 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:32,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 17:32:32,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:32:32,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:32:32,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 17:32:32,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:32,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:33,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:34,073 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:34,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123820655] [2021-12-06 17:32:34,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123820655] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:34,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:34,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-12-06 17:32:34,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206626487] [2021-12-06 17:32:34,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:34,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 17:32:34,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:34,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 17:32:34,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:32:34,075 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 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) [2021-12-06 17:32:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:36,679 INFO L93 Difference]: Finished difference Result 227 states and 270 transitions. [2021-12-06 17:32:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 17:32:36,680 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 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 18 [2021-12-06 17:32:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:36,681 INFO L225 Difference]: With dead ends: 227 [2021-12-06 17:32:36,681 INFO L226 Difference]: Without dead ends: 227 [2021-12-06 17:32:36,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:32:36,682 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 301 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:36,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 263 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 287 Invalid, 0 Unknown, 60 Unchecked, 1.6s Time] [2021-12-06 17:32:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-12-06 17:32:36,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 67. [2021-12-06 17:32:36,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 66 states have internal predecessors, (80), 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) [2021-12-06 17:32:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 80 transitions. [2021-12-06 17:32:36,685 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 80 transitions. Word has length 18 [2021-12-06 17:32:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:36,686 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 80 transitions. [2021-12-06 17:32:36,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 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) [2021-12-06 17:32:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2021-12-06 17:32:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 17:32:36,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:36,686 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:36,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 17:32:36,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:36,887 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:36,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:36,889 INFO L85 PathProgramCache]: Analyzing trace with hash -511715546, now seen corresponding path program 1 times [2021-12-06 17:32:36,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:36,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587984686] [2021-12-06 17:32:36,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:36,890 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:36,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:36,893 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:36,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 17:32:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:36,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 17:32:36,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:36,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:37,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:38,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:32:38,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:38,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587984686] [2021-12-06 17:32:38,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587984686] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:38,333 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:38,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2021-12-06 17:32:38,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184894064] [2021-12-06 17:32:38,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:38,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 17:32:38,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:38,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 17:32:38,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:32:38,334 INFO L87 Difference]: Start difference. First operand 67 states and 80 transitions. Second operand has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 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) [2021-12-06 17:32:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:38,892 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2021-12-06 17:32:38,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:32:38,893 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 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 18 [2021-12-06 17:32:38,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:38,895 INFO L225 Difference]: With dead ends: 71 [2021-12-06 17:32:38,895 INFO L226 Difference]: Without dead ends: 67 [2021-12-06 17:32:38,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-12-06 17:32:38,895 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:38,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 148 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 77 Unchecked, 0.4s Time] [2021-12-06 17:32:38,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-12-06 17:32:38,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-12-06 17:32:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 66 states have internal predecessors, (79), 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) [2021-12-06 17:32:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2021-12-06 17:32:38,899 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 18 [2021-12-06 17:32:38,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:38,899 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2021-12-06 17:32:38,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 16 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) [2021-12-06 17:32:38,899 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2021-12-06 17:32:38,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-06 17:32:38,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:38,899 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:38,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-06 17:32:39,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:39,100 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:39,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:39,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1609243625, now seen corresponding path program 2 times [2021-12-06 17:32:39,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:39,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655426883] [2021-12-06 17:32:39,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:32:39,103 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:39,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:39,105 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:39,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 17:32:39,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:32:39,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:32:39,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 17:32:39,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:39,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:39,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:40,741 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:40,741 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:40,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655426883] [2021-12-06 17:32:40,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655426883] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:40,742 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:40,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-12-06 17:32:40,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471829401] [2021-12-06 17:32:40,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:40,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 17:32:40,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 17:32:40,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:32:40,743 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand has 16 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 16 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) [2021-12-06 17:32:43,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:43,749 INFO L93 Difference]: Finished difference Result 129 states and 150 transitions. [2021-12-06 17:32:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 17:32:43,750 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 16 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 22 [2021-12-06 17:32:43,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:43,751 INFO L225 Difference]: With dead ends: 129 [2021-12-06 17:32:43,751 INFO L226 Difference]: Without dead ends: 129 [2021-12-06 17:32:43,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2021-12-06 17:32:43,751 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 290 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:43,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 111 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 242 Invalid, 0 Unknown, 30 Unchecked, 1.7s Time] [2021-12-06 17:32:43,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-12-06 17:32:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 91. [2021-12-06 17:32:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 84 states have (on average 1.380952380952381) internal successors, (116), 90 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) [2021-12-06 17:32:43,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 116 transitions. [2021-12-06 17:32:43,755 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 116 transitions. Word has length 22 [2021-12-06 17:32:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:43,755 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 116 transitions. [2021-12-06 17:32:43,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 16 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) [2021-12-06 17:32:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 116 transitions. [2021-12-06 17:32:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 17:32:43,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:43,755 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:43,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-12-06 17:32:43,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:43,956 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:43,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1653055190, now seen corresponding path program 1 times [2021-12-06 17:32:43,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:43,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922151061] [2021-12-06 17:32:43,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:43,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:43,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:43,961 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:43,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 17:32:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:44,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 17:32:44,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:44,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:44,479 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:44,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:45,356 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:45,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922151061] [2021-12-06 17:32:45,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922151061] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:45,356 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:45,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-12-06 17:32:45,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234476138] [2021-12-06 17:32:45,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:45,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 17:32:45,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:45,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 17:32:45,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:32:45,358 INFO L87 Difference]: Start difference. First operand 91 states and 116 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 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) [2021-12-06 17:32:45,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:45,843 INFO L93 Difference]: Finished difference Result 95 states and 120 transitions. [2021-12-06 17:32:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:32:45,844 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 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 23 [2021-12-06 17:32:45,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:45,845 INFO L225 Difference]: With dead ends: 95 [2021-12-06 17:32:45,845 INFO L226 Difference]: Without dead ends: 95 [2021-12-06 17:32:45,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:32:45,845 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:45,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 110 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 28 Unchecked, 0.4s Time] [2021-12-06 17:32:45,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-06 17:32:45,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2021-12-06 17:32:45,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 93 states have internal predecessors, (119), 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) [2021-12-06 17:32:45,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2021-12-06 17:32:45,848 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 23 [2021-12-06 17:32:45,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:45,848 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2021-12-06 17:32:45,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 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) [2021-12-06 17:32:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2021-12-06 17:32:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 17:32:45,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:45,849 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:45,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-06 17:32:46,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:46,050 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1651208148, now seen corresponding path program 1 times [2021-12-06 17:32:46,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:46,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273486485] [2021-12-06 17:32:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:46,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:46,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:46,055 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:46,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 17:32:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:46,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:32:46,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:46,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:32:46,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:46,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273486485] [2021-12-06 17:32:46,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273486485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:32:46,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:32:46,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:32:46,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417482209] [2021-12-06 17:32:46,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:32:46,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:32:46,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:46,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:32:46,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:32:46,223 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-12-06 17:32:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:46,445 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2021-12-06 17:32:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:32:46,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 23 [2021-12-06 17:32:46,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:46,447 INFO L225 Difference]: With dead ends: 132 [2021-12-06 17:32:46,447 INFO L226 Difference]: Without dead ends: 132 [2021-12-06 17:32:46,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:32:46,448 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 92 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:46,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 68 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:32:46,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-12-06 17:32:46,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 109. [2021-12-06 17:32:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 108 states have internal predecessors, (138), 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) [2021-12-06 17:32:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 138 transitions. [2021-12-06 17:32:46,450 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 138 transitions. Word has length 23 [2021-12-06 17:32:46,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:46,451 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 138 transitions. [2021-12-06 17:32:46,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-12-06 17:32:46,451 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 138 transitions. [2021-12-06 17:32:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 17:32:46,451 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:46,451 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:46,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-12-06 17:32:46,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:46,652 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:46,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:46,654 INFO L85 PathProgramCache]: Analyzing trace with hash 294852956, now seen corresponding path program 1 times [2021-12-06 17:32:46,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:46,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760918757] [2021-12-06 17:32:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:46,656 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:46,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:46,658 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:46,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 17:32:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:46,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 17:32:46,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:46,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:47,165 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:47,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:48,090 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:48,090 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:48,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760918757] [2021-12-06 17:32:48,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760918757] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:48,091 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:48,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-12-06 17:32:48,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386001529] [2021-12-06 17:32:48,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:48,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 17:32:48,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:48,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 17:32:48,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:32:48,092 INFO L87 Difference]: Start difference. First operand 109 states and 138 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 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) [2021-12-06 17:32:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:48,517 INFO L93 Difference]: Finished difference Result 109 states and 137 transitions. [2021-12-06 17:32:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:32:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 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 24 [2021-12-06 17:32:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:48,519 INFO L225 Difference]: With dead ends: 109 [2021-12-06 17:32:48,519 INFO L226 Difference]: Without dead ends: 109 [2021-12-06 17:32:48,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-06 17:32:48,519 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 10 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:48,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 111 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 25 Unchecked, 0.4s Time] [2021-12-06 17:32:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-12-06 17:32:48,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2021-12-06 17:32:48,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 100 states have (on average 1.34) internal successors, (134), 105 states have internal predecessors, (134), 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) [2021-12-06 17:32:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 134 transitions. [2021-12-06 17:32:48,522 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 134 transitions. Word has length 24 [2021-12-06 17:32:48,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:48,522 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 134 transitions. [2021-12-06 17:32:48,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 13 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) [2021-12-06 17:32:48,522 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 134 transitions. [2021-12-06 17:32:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 17:32:48,523 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:48,523 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:48,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-12-06 17:32:48,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:48,724 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:48,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:48,725 INFO L85 PathProgramCache]: Analyzing trace with hash -623576636, now seen corresponding path program 2 times [2021-12-06 17:32:48,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:48,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984474667] [2021-12-06 17:32:48,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:32:48,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:48,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:48,729 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:48,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 17:32:48,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:32:48,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:32:48,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 17:32:48,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:48,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:32:49,329 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:49,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:50,987 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:50,987 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:50,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984474667] [2021-12-06 17:32:50,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984474667] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:50,987 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:50,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2021-12-06 17:32:50,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354243256] [2021-12-06 17:32:50,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:50,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 17:32:50,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 17:32:50,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:32:50,989 INFO L87 Difference]: Start difference. First operand 106 states and 134 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 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) [2021-12-06 17:32:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:32:56,081 INFO L93 Difference]: Finished difference Result 132 states and 167 transitions. [2021-12-06 17:32:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-06 17:32:56,081 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 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 28 [2021-12-06 17:32:56,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:32:56,082 INFO L225 Difference]: With dead ends: 132 [2021-12-06 17:32:56,082 INFO L226 Difference]: Without dead ends: 132 [2021-12-06 17:32:56,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=197, Invalid=733, Unknown=0, NotChecked=0, Total=930 [2021-12-06 17:32:56,083 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 24 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:32:56,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 125 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 40 Unchecked, 0.8s Time] [2021-12-06 17:32:56,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-12-06 17:32:56,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 126. [2021-12-06 17:32:56,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 120 states have (on average 1.375) internal successors, (165), 125 states have internal predecessors, (165), 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) [2021-12-06 17:32:56,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 165 transitions. [2021-12-06 17:32:56,088 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 165 transitions. Word has length 28 [2021-12-06 17:32:56,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:32:56,088 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 165 transitions. [2021-12-06 17:32:56,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 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) [2021-12-06 17:32:56,089 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 165 transitions. [2021-12-06 17:32:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 17:32:56,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:32:56,089 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:32:56,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-12-06 17:32:56,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:32:56,290 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:32:56,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:32:56,291 INFO L85 PathProgramCache]: Analyzing trace with hash -621729594, now seen corresponding path program 1 times [2021-12-06 17:32:56,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:32:56,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370449465] [2021-12-06 17:32:56,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:32:56,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:32:56,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:32:56,297 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:32:56,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-12-06 17:32:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:32:56,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:32:56,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:32:56,457 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:56,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:32:56,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2021-12-06 17:32:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:32:57,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:32:57,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370449465] [2021-12-06 17:32:57,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370449465] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:32:57,093 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:32:57,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-12-06 17:32:57,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042135787] [2021-12-06 17:32:57,094 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:32:57,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 17:32:57,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:32:57,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:32:57,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:32:57,094 INFO L87 Difference]: Start difference. First operand 126 states and 165 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 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) [2021-12-06 17:33:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:33:00,266 INFO L93 Difference]: Finished difference Result 245 states and 291 transitions. [2021-12-06 17:33:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-06 17:33:00,266 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 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 28 [2021-12-06 17:33:00,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:33:00,267 INFO L225 Difference]: With dead ends: 245 [2021-12-06 17:33:00,267 INFO L226 Difference]: Without dead ends: 245 [2021-12-06 17:33:00,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=352, Invalid=838, Unknown=0, NotChecked=0, Total=1190 [2021-12-06 17:33:00,268 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 424 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:33:00,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 118 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 17:33:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-12-06 17:33:00,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 119. [2021-12-06 17:33:00,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 113 states have (on average 1.3628318584070795) internal successors, (154), 118 states have internal predecessors, (154), 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) [2021-12-06 17:33:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 154 transitions. [2021-12-06 17:33:00,272 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 154 transitions. Word has length 28 [2021-12-06 17:33:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:33:00,272 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 154 transitions. [2021-12-06 17:33:00,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 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) [2021-12-06 17:33:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 154 transitions. [2021-12-06 17:33:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 17:33:00,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:33:00,273 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:33:00,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-12-06 17:33:00,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:33:00,474 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:33:00,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:33:00,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2143917058, now seen corresponding path program 2 times [2021-12-06 17:33:00,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:33:00,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68892621] [2021-12-06 17:33:00,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:33:00,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:33:00,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:33:00,479 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:33:00,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-12-06 17:33:00,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:33:00,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:33:00,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 17:33:00,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:33:00,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:33:01,326 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:33:01,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:33:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:33:02,932 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:33:02,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68892621] [2021-12-06 17:33:02,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68892621] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:33:02,932 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:33:02,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2021-12-06 17:33:02,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930651961] [2021-12-06 17:33:02,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:33:02,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 17:33:02,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:33:02,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 17:33:02,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:33:02,934 INFO L87 Difference]: Start difference. First operand 119 states and 154 transitions. Second operand has 17 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 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) [2021-12-06 17:33:05,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:33:05,588 INFO L93 Difference]: Finished difference Result 132 states and 167 transitions. [2021-12-06 17:33:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 17:33:05,589 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 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 29 [2021-12-06 17:33:05,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:33:05,590 INFO L225 Difference]: With dead ends: 132 [2021-12-06 17:33:05,590 INFO L226 Difference]: Without dead ends: 132 [2021-12-06 17:33:05,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2021-12-06 17:33:05,591 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:33:05,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 145 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 35 Unchecked, 0.8s Time] [2021-12-06 17:33:05,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-12-06 17:33:05,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 115. [2021-12-06 17:33:05,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 109 states have (on average 1.3577981651376148) internal successors, (148), 114 states have internal predecessors, (148), 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) [2021-12-06 17:33:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 148 transitions. [2021-12-06 17:33:05,593 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 148 transitions. Word has length 29 [2021-12-06 17:33:05,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:33:05,594 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 148 transitions. [2021-12-06 17:33:05,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 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) [2021-12-06 17:33:05,594 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 148 transitions. [2021-12-06 17:33:05,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 17:33:05,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:33:05,594 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 17:33:05,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-12-06 17:33:05,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:33:05,795 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:33:05,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:33:05,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1767402818, now seen corresponding path program 1 times [2021-12-06 17:33:05,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:33:05,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517158126] [2021-12-06 17:33:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:33:05,798 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:33:05,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:33:05,800 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:33:05,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-12-06 17:33:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:33:05,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:33:05,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:33:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 17:33:06,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:33:06,050 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:33:06,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517158126] [2021-12-06 17:33:06,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517158126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:33:06,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:33:06,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:33:06,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085761725] [2021-12-06 17:33:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:33:06,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:33:06,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:33:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:33:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:33:06,051 INFO L87 Difference]: Start difference. First operand 115 states and 148 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2021-12-06 17:33:06,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:33:06,055 INFO L93 Difference]: Finished difference Result 114 states and 147 transitions. [2021-12-06 17:33:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:33:06,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 31 [2021-12-06 17:33:06,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:33:06,056 INFO L225 Difference]: With dead ends: 114 [2021-12-06 17:33:06,056 INFO L226 Difference]: Without dead ends: 112 [2021-12-06 17:33:06,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:33:06,057 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:33:06,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 45 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2021-12-06 17:33:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-12-06 17:33:06,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-12-06 17:33:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 111 states have internal predecessors, (144), 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) [2021-12-06 17:33:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 144 transitions. [2021-12-06 17:33:06,060 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 144 transitions. Word has length 31 [2021-12-06 17:33:06,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:33:06,060 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 144 transitions. [2021-12-06 17:33:06,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2021-12-06 17:33:06,061 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 144 transitions. [2021-12-06 17:33:06,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 17:33:06,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:33:06,061 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 17:33:06,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-12-06 17:33:06,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:33:06,262 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:33:06,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:33:06,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1767403543, now seen corresponding path program 1 times [2021-12-06 17:33:06,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:33:06,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918928282] [2021-12-06 17:33:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:33:06,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:33:06,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:33:06,267 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:33:06,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-12-06 17:33:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:33:06,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 17:33:06,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:33:06,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:33:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:33:06,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:33:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:33:07,966 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:33:07,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918928282] [2021-12-06 17:33:07,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918928282] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:33:07,966 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:33:07,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-12-06 17:33:07,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343937515] [2021-12-06 17:33:07,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:33:07,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 17:33:07,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:33:07,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 17:33:07,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:33:07,967 INFO L87 Difference]: Start difference. First operand 112 states and 144 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 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) [2021-12-06 17:33:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:33:08,511 INFO L93 Difference]: Finished difference Result 142 states and 179 transitions. [2021-12-06 17:33:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:33:08,512 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 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 31 [2021-12-06 17:33:08,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:33:08,513 INFO L225 Difference]: With dead ends: 142 [2021-12-06 17:33:08,513 INFO L226 Difference]: Without dead ends: 142 [2021-12-06 17:33:08,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:33:08,513 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 47 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:33:08,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 103 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 47 Unchecked, 0.4s Time] [2021-12-06 17:33:08,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-12-06 17:33:08,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2021-12-06 17:33:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 129 states have (on average 1.3643410852713178) internal successors, (176), 133 states have internal predecessors, (176), 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) [2021-12-06 17:33:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 176 transitions. [2021-12-06 17:33:08,516 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 176 transitions. Word has length 31 [2021-12-06 17:33:08,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:33:08,516 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 176 transitions. [2021-12-06 17:33:08,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 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) [2021-12-06 17:33:08,517 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 176 transitions. [2021-12-06 17:33:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 17:33:08,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:33:08,517 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 17:33:08,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-12-06 17:33:08,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:33:08,718 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:33:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:33:08,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1767403589, now seen corresponding path program 1 times [2021-12-06 17:33:08,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:33:08,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341236324] [2021-12-06 17:33:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:33:08,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:33:08,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:33:08,723 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:33:08,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-12-06 17:33:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:33:08,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-06 17:33:08,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:33:08,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:33:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:33:09,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:33:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 17:33:10,867 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:33:10,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341236324] [2021-12-06 17:33:10,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341236324] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:33:10,867 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:33:10,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2021-12-06 17:33:10,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045653672] [2021-12-06 17:33:10,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:33:10,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 17:33:10,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:33:10,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 17:33:10,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2021-12-06 17:33:10,868 INFO L87 Difference]: Start difference. First operand 134 states and 176 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 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) [2021-12-06 17:33:17,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:33:17,202 INFO L93 Difference]: Finished difference Result 195 states and 238 transitions. [2021-12-06 17:33:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-06 17:33:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 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 31 [2021-12-06 17:33:17,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:33:17,203 INFO L225 Difference]: With dead ends: 195 [2021-12-06 17:33:17,203 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 17:33:17,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=462, Invalid=1178, Unknown=0, NotChecked=0, Total=1640 [2021-12-06 17:33:17,204 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 507 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:33:17,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [507 Valid, 76 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 17:33:17,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 17:33:17,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 136. [2021-12-06 17:33:17,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 131 states have (on average 1.366412213740458) internal successors, (179), 135 states have internal predecessors, (179), 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) [2021-12-06 17:33:17,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 179 transitions. [2021-12-06 17:33:17,207 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 179 transitions. Word has length 31 [2021-12-06 17:33:17,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:33:17,208 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 179 transitions. [2021-12-06 17:33:17,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 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) [2021-12-06 17:33:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 179 transitions. [2021-12-06 17:33:17,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 17:33:17,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:33:17,208 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:33:17,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-12-06 17:33:17,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:33:17,409 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:33:17,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:33:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash 276218793, now seen corresponding path program 3 times [2021-12-06 17:33:17,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:33:17,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431760092] [2021-12-06 17:33:17,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:33:17,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:33:17,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:33:17,414 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:33:17,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-12-06 17:33:17,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-06 17:33:17,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:33:17,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-06 17:33:17,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:33:17,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:33:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:33:18,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:33:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:33:21,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:33:21,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431760092] [2021-12-06 17:33:21,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431760092] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:33:21,819 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:33:21,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2021-12-06 17:33:21,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235682846] [2021-12-06 17:33:21,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:33:21,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-06 17:33:21,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:33:21,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 17:33:21,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2021-12-06 17:33:21,820 INFO L87 Difference]: Start difference. First operand 136 states and 179 transitions. Second operand has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 24 states have internal predecessors, (62), 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) [2021-12-06 17:33:34,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:33:34,264 INFO L93 Difference]: Finished difference Result 160 states and 201 transitions. [2021-12-06 17:33:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 17:33:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 24 states have internal predecessors, (62), 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 32 [2021-12-06 17:33:34,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:33:34,264 INFO L225 Difference]: With dead ends: 160 [2021-12-06 17:33:34,264 INFO L226 Difference]: Without dead ends: 152 [2021-12-06 17:33:34,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=387, Invalid=1419, Unknown=0, NotChecked=0, Total=1806 [2021-12-06 17:33:34,265 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 310 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:33:34,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 109 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-06 17:33:34,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-12-06 17:33:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 141. [2021-12-06 17:33:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 136 states have (on average 1.3529411764705883) internal successors, (184), 140 states have internal predecessors, (184), 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) [2021-12-06 17:33:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2021-12-06 17:33:34,268 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 32 [2021-12-06 17:33:34,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:33:34,268 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2021-12-06 17:33:34,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 24 states have internal predecessors, (62), 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) [2021-12-06 17:33:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2021-12-06 17:33:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 17:33:34,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:33:34,269 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1] [2021-12-06 17:33:34,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-12-06 17:33:34,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:33:34,470 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:33:34,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:33:34,471 INFO L85 PathProgramCache]: Analyzing trace with hash -563143139, now seen corresponding path program 3 times [2021-12-06 17:33:34,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:33:34,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750025708] [2021-12-06 17:33:34,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:33:34,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:33:34,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:33:34,475 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:33:34,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-12-06 17:33:34,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-12-06 17:33:34,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:33:34,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 17:33:34,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:33:34,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:33:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:33:35,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:33:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:33:38,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:33:38,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750025708] [2021-12-06 17:33:38,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750025708] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:33:38,751 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:33:38,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-12-06 17:33:38,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909361584] [2021-12-06 17:33:38,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:33:38,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-06 17:33:38,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:33:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 17:33:38,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2021-12-06 17:33:38,752 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 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) [2021-12-06 17:33:58,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:33:58,945 INFO L93 Difference]: Finished difference Result 1339 states and 1808 transitions. [2021-12-06 17:33:58,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-06 17:33:58,946 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 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 [2021-12-06 17:33:58,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:33:58,952 INFO L225 Difference]: With dead ends: 1339 [2021-12-06 17:33:58,952 INFO L226 Difference]: Without dead ends: 1339 [2021-12-06 17:33:58,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=547, Invalid=1259, Unknown=0, NotChecked=0, Total=1806 [2021-12-06 17:33:58,953 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 1389 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:33:58,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1389 Valid, 684 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 996 Invalid, 0 Unknown, 93 Unchecked, 5.4s Time] [2021-12-06 17:33:58,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2021-12-06 17:33:58,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 173. [2021-12-06 17:33:58,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 168 states have (on average 1.3333333333333333) internal successors, (224), 172 states have internal predecessors, (224), 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) [2021-12-06 17:33:58,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 224 transitions. [2021-12-06 17:33:58,963 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 224 transitions. Word has length 34 [2021-12-06 17:33:58,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:33:58,963 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 224 transitions. [2021-12-06 17:33:58,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 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) [2021-12-06 17:33:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 224 transitions. [2021-12-06 17:33:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 17:33:58,963 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:33:58,963 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:33:58,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-12-06 17:33:59,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:33:59,164 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:33:59,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:33:59,164 INFO L85 PathProgramCache]: Analyzing trace with hash 605983569, now seen corresponding path program 1 times [2021-12-06 17:33:59,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:33:59,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136292245] [2021-12-06 17:33:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:33:59,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:33:59,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:33:59,166 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:33:59,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-12-06 17:33:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:33:59,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 17:33:59,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:33:59,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:33:59,948 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 17:33:59,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 17:34:01,272 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:01,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136292245] [2021-12-06 17:34:01,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136292245] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:01,273 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:01,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2021-12-06 17:34:01,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9121869] [2021-12-06 17:34:01,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:01,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 17:34:01,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:01,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 17:34:01,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:34:01,274 INFO L87 Difference]: Start difference. First operand 173 states and 224 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 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) [2021-12-06 17:34:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:01,673 INFO L93 Difference]: Finished difference Result 190 states and 243 transitions. [2021-12-06 17:34:01,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 17:34:01,675 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 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 41 [2021-12-06 17:34:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:34:01,676 INFO L225 Difference]: With dead ends: 190 [2021-12-06 17:34:01,676 INFO L226 Difference]: Without dead ends: 190 [2021-12-06 17:34:01,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-12-06 17:34:01,677 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 45 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:34:01,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 120 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 51 Unchecked, 0.2s Time] [2021-12-06 17:34:01,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-12-06 17:34:01,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2021-12-06 17:34:01,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.3296703296703296) internal successors, (242), 186 states have internal predecessors, (242), 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) [2021-12-06 17:34:01,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 242 transitions. [2021-12-06 17:34:01,682 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 242 transitions. Word has length 41 [2021-12-06 17:34:01,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:34:01,683 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 242 transitions. [2021-12-06 17:34:01,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 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) [2021-12-06 17:34:01,683 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 242 transitions. [2021-12-06 17:34:01,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 17:34:01,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:34:01,683 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:34:01,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-12-06 17:34:01,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:34:01,884 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:34:01,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:01,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1927265964, now seen corresponding path program 4 times [2021-12-06 17:34:01,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:34:01,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701381154] [2021-12-06 17:34:01,885 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 17:34:01,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:34:01,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:34:01,886 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:34:01,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-12-06 17:34:01,974 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 17:34:01,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:34:01,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 17:34:01,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:01,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:34:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 17:34:02,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:34:05,879 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:05,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701381154] [2021-12-06 17:34:05,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701381154] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:05,879 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:05,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25 [2021-12-06 17:34:05,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356391209] [2021-12-06 17:34:05,880 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:05,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-06 17:34:05,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:05,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-06 17:34:05,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2021-12-06 17:34:05,880 INFO L87 Difference]: Start difference. First operand 187 states and 242 transitions. Second operand has 25 states, 25 states have (on average 3.04) internal successors, (76), 25 states have internal predecessors, (76), 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) [2021-12-06 17:34:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:07,375 INFO L93 Difference]: Finished difference Result 204 states and 261 transitions. [2021-12-06 17:34:07,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:34:07,377 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 25 states have internal predecessors, (76), 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 41 [2021-12-06 17:34:07,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:34:07,378 INFO L225 Difference]: With dead ends: 204 [2021-12-06 17:34:07,378 INFO L226 Difference]: Without dead ends: 202 [2021-12-06 17:34:07,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2021-12-06 17:34:07,379 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 43 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:34:07,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 183 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 263 Invalid, 0 Unknown, 32 Unchecked, 1.2s Time] [2021-12-06 17:34:07,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-12-06 17:34:07,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 200. [2021-12-06 17:34:07,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.317948717948718) internal successors, (257), 199 states have internal predecessors, (257), 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) [2021-12-06 17:34:07,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 257 transitions. [2021-12-06 17:34:07,383 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 257 transitions. Word has length 41 [2021-12-06 17:34:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:34:07,383 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 257 transitions. [2021-12-06 17:34:07,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 25 states have internal predecessors, (76), 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) [2021-12-06 17:34:07,383 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 257 transitions. [2021-12-06 17:34:07,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 17:34:07,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:34:07,383 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:34:07,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-12-06 17:34:07,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:34:07,585 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:34:07,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:07,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1605577749, now seen corresponding path program 1 times [2021-12-06 17:34:07,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:34:07,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981226103] [2021-12-06 17:34:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:07,587 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:34:07,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:34:07,589 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:34:07,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-12-06 17:34:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:07,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 17:34:07,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:07,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:34:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 17:34:08,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 17:34:09,758 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:09,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981226103] [2021-12-06 17:34:09,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981226103] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:09,758 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:09,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2021-12-06 17:34:09,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143472521] [2021-12-06 17:34:09,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:09,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 17:34:09,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:09,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 17:34:09,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:34:09,759 INFO L87 Difference]: Start difference. First operand 200 states and 257 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 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) [2021-12-06 17:34:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:10,152 INFO L93 Difference]: Finished difference Result 207 states and 263 transitions. [2021-12-06 17:34:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:34:10,154 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 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 42 [2021-12-06 17:34:10,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:34:10,155 INFO L225 Difference]: With dead ends: 207 [2021-12-06 17:34:10,155 INFO L226 Difference]: Without dead ends: 207 [2021-12-06 17:34:10,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:34:10,156 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:34:10,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 149 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 37 Unchecked, 0.2s Time] [2021-12-06 17:34:10,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-12-06 17:34:10,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 200. [2021-12-06 17:34:10,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 195 states have (on average 1.317948717948718) internal successors, (257), 199 states have internal predecessors, (257), 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) [2021-12-06 17:34:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 257 transitions. [2021-12-06 17:34:10,159 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 257 transitions. Word has length 42 [2021-12-06 17:34:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:34:10,159 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 257 transitions. [2021-12-06 17:34:10,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 15 states have internal predecessors, (60), 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) [2021-12-06 17:34:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 257 transitions. [2021-12-06 17:34:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 17:34:10,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:34:10,160 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:34:10,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-12-06 17:34:10,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:34:10,361 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:34:10,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1261948553, now seen corresponding path program 5 times [2021-12-06 17:34:10,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:34:10,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573469380] [2021-12-06 17:34:10,363 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 17:34:10,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:34:10,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:34:10,366 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:34:10,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-12-06 17:34:10,635 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-12-06 17:34:10,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:34:10,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 17:34:10,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:10,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:34:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 17 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:34:11,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:34:14,951 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:14,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573469380] [2021-12-06 17:34:14,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573469380] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:14,951 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:14,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2021-12-06 17:34:14,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004818878] [2021-12-06 17:34:14,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:14,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-06 17:34:14,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:14,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-06 17:34:14,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2021-12-06 17:34:14,952 INFO L87 Difference]: Start difference. First operand 200 states and 257 transitions. Second operand has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 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) [2021-12-06 17:34:23,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:23,441 INFO L93 Difference]: Finished difference Result 306 states and 395 transitions. [2021-12-06 17:34:23,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-06 17:34:23,442 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 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 45 [2021-12-06 17:34:23,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:34:23,443 INFO L225 Difference]: With dead ends: 306 [2021-12-06 17:34:23,443 INFO L226 Difference]: Without dead ends: 304 [2021-12-06 17:34:23,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=279, Invalid=1361, Unknown=0, NotChecked=0, Total=1640 [2021-12-06 17:34:23,445 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 336 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 159 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:34:23,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 251 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 538 Invalid, 0 Unknown, 159 Unchecked, 3.3s Time] [2021-12-06 17:34:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-12-06 17:34:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 213. [2021-12-06 17:34:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.3125) internal successors, (273), 212 states have internal predecessors, (273), 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) [2021-12-06 17:34:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 273 transitions. [2021-12-06 17:34:23,450 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 273 transitions. Word has length 45 [2021-12-06 17:34:23,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:34:23,450 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 273 transitions. [2021-12-06 17:34:23,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 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) [2021-12-06 17:34:23,451 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 273 transitions. [2021-12-06 17:34:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 17:34:23,451 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:34:23,451 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:34:23,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2021-12-06 17:34:23,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:34:23,653 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:34:23,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:23,654 INFO L85 PathProgramCache]: Analyzing trace with hash 17747592, now seen corresponding path program 2 times [2021-12-06 17:34:23,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:34:23,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096678879] [2021-12-06 17:34:23,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:34:23,655 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:34:23,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:34:23,658 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:34:23,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-12-06 17:34:23,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:34:23,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:34:23,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 17:34:23,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:23,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:34:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 17:34:24,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:25,835 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-06 17:34:25,836 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:25,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096678879] [2021-12-06 17:34:25,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096678879] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:25,836 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:25,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-12-06 17:34:25,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079881297] [2021-12-06 17:34:25,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:25,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 17:34:25,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:25,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 17:34:25,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:34:25,837 INFO L87 Difference]: Start difference. First operand 213 states and 273 transitions. Second operand has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 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) [2021-12-06 17:34:26,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:26,272 INFO L93 Difference]: Finished difference Result 232 states and 298 transitions. [2021-12-06 17:34:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:34:26,273 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 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 45 [2021-12-06 17:34:26,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:34:26,275 INFO L225 Difference]: With dead ends: 232 [2021-12-06 17:34:26,275 INFO L226 Difference]: Without dead ends: 232 [2021-12-06 17:34:26,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:34:26,276 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:34:26,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 126 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 37 Unchecked, 0.2s Time] [2021-12-06 17:34:26,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-12-06 17:34:26,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-12-06 17:34:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.32) internal successors, (297), 229 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) [2021-12-06 17:34:26,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 297 transitions. [2021-12-06 17:34:26,280 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 297 transitions. Word has length 45 [2021-12-06 17:34:26,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:34:26,280 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 297 transitions. [2021-12-06 17:34:26,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 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) [2021-12-06 17:34:26,282 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 297 transitions. [2021-12-06 17:34:26,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 17:34:26,282 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:34:26,282 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:34:26,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:26,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:34:26,483 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:34:26,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:26,483 INFO L85 PathProgramCache]: Analyzing trace with hash 17747638, now seen corresponding path program 2 times [2021-12-06 17:34:26,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:34:26,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651868331] [2021-12-06 17:34:26,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:34:26,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:34:26,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:34:26,484 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:34:26,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-12-06 17:34:26,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:34:26,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:34:26,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 17:34:26,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:26,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:34:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:34:27,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:30,598 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:34:30,598 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:30,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651868331] [2021-12-06 17:34:30,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651868331] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:30,598 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:30,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-12-06 17:34:30,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232190530] [2021-12-06 17:34:30,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:30,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-06 17:34:30,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:30,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 17:34:30,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2021-12-06 17:34:30,599 INFO L87 Difference]: Start difference. First operand 230 states and 297 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 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) [2021-12-06 17:34:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:42,939 INFO L93 Difference]: Finished difference Result 503 states and 637 transitions. [2021-12-06 17:34:42,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-06 17:34:42,940 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 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 45 [2021-12-06 17:34:42,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:34:42,942 INFO L225 Difference]: With dead ends: 503 [2021-12-06 17:34:42,942 INFO L226 Difference]: Without dead ends: 503 [2021-12-06 17:34:42,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=816, Invalid=2490, Unknown=0, NotChecked=0, Total=3306 [2021-12-06 17:34:42,943 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 582 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:34:42,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 132 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 504 Invalid, 0 Unknown, 46 Unchecked, 4.1s Time] [2021-12-06 17:34:42,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-12-06 17:34:42,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 364. [2021-12-06 17:34:42,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 359 states have (on average 1.317548746518106) internal successors, (473), 363 states have internal predecessors, (473), 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) [2021-12-06 17:34:42,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 473 transitions. [2021-12-06 17:34:42,949 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 473 transitions. Word has length 45 [2021-12-06 17:34:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:34:42,949 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 473 transitions. [2021-12-06 17:34:42,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 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) [2021-12-06 17:34:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 473 transitions. [2021-12-06 17:34:42,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 17:34:42,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:34:42,949 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:34:42,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:43,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:34:43,151 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:34:43,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:43,152 INFO L85 PathProgramCache]: Analyzing trace with hash 550176765, now seen corresponding path program 2 times [2021-12-06 17:34:43,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:34:43,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251294023] [2021-12-06 17:34:43,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:34:43,153 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:34:43,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:34:43,156 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:34:43,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-12-06 17:34:43,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:34:43,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:34:43,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 17:34:43,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:43,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:34:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:34:44,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:46,783 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:34:46,783 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:46,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251294023] [2021-12-06 17:34:46,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251294023] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:46,783 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:46,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-12-06 17:34:46,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654295151] [2021-12-06 17:34:46,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:46,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 17:34:46,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:46,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 17:34:46,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:34:46,784 INFO L87 Difference]: Start difference. First operand 364 states and 473 transitions. Second operand has 21 states, 20 states have (on average 3.7) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-12-06 17:34:48,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:48,168 INFO L93 Difference]: Finished difference Result 382 states and 487 transitions. [2021-12-06 17:34:48,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 17:34:48,169 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.7) internal successors, (74), 21 states have internal predecessors, (74), 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 46 [2021-12-06 17:34:48,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:34:48,170 INFO L225 Difference]: With dead ends: 382 [2021-12-06 17:34:48,170 INFO L226 Difference]: Without dead ends: 382 [2021-12-06 17:34:48,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2021-12-06 17:34:48,171 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 56 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:34:48,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 184 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 101 Unchecked, 0.5s Time] [2021-12-06 17:34:48,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-12-06 17:34:48,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 360. [2021-12-06 17:34:48,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.3183098591549296) internal successors, (468), 359 states have internal predecessors, (468), 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) [2021-12-06 17:34:48,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 468 transitions. [2021-12-06 17:34:48,176 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 468 transitions. Word has length 46 [2021-12-06 17:34:48,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:34:48,176 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 468 transitions. [2021-12-06 17:34:48,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.7) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-12-06 17:34:48,176 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 468 transitions. [2021-12-06 17:34:48,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 17:34:48,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:34:48,177 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:34:48,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-12-06 17:34:48,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:34:48,378 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:34:48,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:48,379 INFO L85 PathProgramCache]: Analyzing trace with hash -124433175, now seen corresponding path program 2 times [2021-12-06 17:34:48,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:34:48,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822708038] [2021-12-06 17:34:48,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:34:48,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:34:48,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:34:48,383 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:34:48,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-12-06 17:34:48,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:34:48,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:34:48,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 17:34:48,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:48,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:34:49,529 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:34:49,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:51,907 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:34:51,907 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:51,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822708038] [2021-12-06 17:34:51,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822708038] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:51,907 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:51,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-12-06 17:34:51,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819432484] [2021-12-06 17:34:51,908 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:51,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 17:34:51,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:51,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 17:34:51,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:34:51,908 INFO L87 Difference]: Start difference. First operand 360 states and 468 transitions. Second operand has 21 states, 20 states have (on average 3.8) internal successors, (76), 21 states have internal predecessors, (76), 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) [2021-12-06 17:34:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:53,318 INFO L93 Difference]: Finished difference Result 378 states and 482 transitions. [2021-12-06 17:34:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 17:34:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.8) internal successors, (76), 21 states have internal predecessors, (76), 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 47 [2021-12-06 17:34:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:34:53,321 INFO L225 Difference]: With dead ends: 378 [2021-12-06 17:34:53,321 INFO L226 Difference]: Without dead ends: 378 [2021-12-06 17:34:53,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2021-12-06 17:34:53,322 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 52 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:34:53,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 181 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 92 Unchecked, 0.5s Time] [2021-12-06 17:34:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-12-06 17:34:53,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 351. [2021-12-06 17:34:53,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.3150289017341041) internal successors, (455), 350 states have internal predecessors, (455), 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) [2021-12-06 17:34:53,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 455 transitions. [2021-12-06 17:34:53,327 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 455 transitions. Word has length 47 [2021-12-06 17:34:53,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:34:53,328 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 455 transitions. [2021-12-06 17:34:53,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.8) internal successors, (76), 21 states have internal predecessors, (76), 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) [2021-12-06 17:34:53,328 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 455 transitions. [2021-12-06 17:34:53,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 17:34:53,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:34:53,329 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:34:53,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2021-12-06 17:34:53,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:34:53,530 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:34:53,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:53,531 INFO L85 PathProgramCache]: Analyzing trace with hash 387622886, now seen corresponding path program 6 times [2021-12-06 17:34:53,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:34:53,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015071496] [2021-12-06 17:34:53,532 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 17:34:53,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:34:53,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:34:53,535 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:34:53,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-12-06 17:34:53,720 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-12-06 17:34:53,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:34:53,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-06 17:34:53,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:53,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:34:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 17:34:54,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 17:34:58,327 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:34:58,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015071496] [2021-12-06 17:34:58,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015071496] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:58,327 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:34:58,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-12-06 17:34:58,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410715243] [2021-12-06 17:34:58,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:58,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 17:34:58,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:34:58,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 17:34:58,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2021-12-06 17:34:58,328 INFO L87 Difference]: Start difference. First operand 351 states and 455 transitions. Second operand has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 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) [2021-12-06 17:35:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:35:25,142 INFO L93 Difference]: Finished difference Result 591 states and 743 transitions. [2021-12-06 17:35:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-06 17:35:25,144 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 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 49 [2021-12-06 17:35:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:35:25,146 INFO L225 Difference]: With dead ends: 591 [2021-12-06 17:35:25,146 INFO L226 Difference]: Without dead ends: 591 [2021-12-06 17:35:25,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1093 ImplicationChecksByTransitivity, 23.2s TimeCoverageRelationStatistics Valid=1056, Invalid=3104, Unknown=0, NotChecked=0, Total=4160 [2021-12-06 17:35:25,148 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 537 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:35:25,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 182 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 655 Invalid, 0 Unknown, 25 Unchecked, 5.8s Time] [2021-12-06 17:35:25,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-12-06 17:35:25,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 454. [2021-12-06 17:35:25,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.3474387527839644) internal successors, (605), 453 states have internal predecessors, (605), 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) [2021-12-06 17:35:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 605 transitions. [2021-12-06 17:35:25,154 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 605 transitions. Word has length 49 [2021-12-06 17:35:25,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:35:25,154 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 605 transitions. [2021-12-06 17:35:25,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 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) [2021-12-06 17:35:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 605 transitions. [2021-12-06 17:35:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 17:35:25,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:35:25,155 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:35:25,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-12-06 17:35:25,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:35:25,356 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:35:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:35:25,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2146511183, now seen corresponding path program 2 times [2021-12-06 17:35:25,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:35:25,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214854573] [2021-12-06 17:35:25,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:35:25,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:35:25,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:35:25,362 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:35:25,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-12-06 17:35:25,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:35:25,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:35:25,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 17:35:25,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:35:25,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:35:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 17:35:26,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:35:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 17:35:29,011 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:35:29,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214854573] [2021-12-06 17:35:29,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214854573] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:35:29,011 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:35:29,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-12-06 17:35:29,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563606352] [2021-12-06 17:35:29,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:35:29,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 17:35:29,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:35:29,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 17:35:29,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:35:29,012 INFO L87 Difference]: Start difference. First operand 454 states and 605 transitions. Second operand has 21 states, 20 states have (on average 3.3) internal successors, (66), 21 states have internal predecessors, (66), 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) [2021-12-06 17:35:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:35:38,604 INFO L93 Difference]: Finished difference Result 681 states and 883 transitions. [2021-12-06 17:35:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-12-06 17:35:38,605 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.3) internal successors, (66), 21 states have internal predecessors, (66), 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 50 [2021-12-06 17:35:38,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:35:38,608 INFO L225 Difference]: With dead ends: 681 [2021-12-06 17:35:38,608 INFO L226 Difference]: Without dead ends: 681 [2021-12-06 17:35:38,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=470, Invalid=1786, Unknown=0, NotChecked=0, Total=2256 [2021-12-06 17:35:38,609 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 125 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 147 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:35:38,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 215 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 147 Unchecked, 1.8s Time] [2021-12-06 17:35:38,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2021-12-06 17:35:38,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 568. [2021-12-06 17:35:38,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 563 states have (on average 1.3605683836589697) internal successors, (766), 567 states have internal predecessors, (766), 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) [2021-12-06 17:35:38,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 766 transitions. [2021-12-06 17:35:38,616 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 766 transitions. Word has length 50 [2021-12-06 17:35:38,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:35:38,616 INFO L470 AbstractCegarLoop]: Abstraction has 568 states and 766 transitions. [2021-12-06 17:35:38,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.3) internal successors, (66), 21 states have internal predecessors, (66), 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) [2021-12-06 17:35:38,616 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 766 transitions. [2021-12-06 17:35:38,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 17:35:38,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:35:38,617 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:35:38,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-12-06 17:35:38,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:35:38,818 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:35:38,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:35:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2117293527, now seen corresponding path program 1 times [2021-12-06 17:35:38,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:35:38,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693693094] [2021-12-06 17:35:38,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:35:38,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:35:38,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:35:38,823 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:35:38,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-12-06 17:35:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:35:38,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 17:35:38,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:35:38,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:35:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 17:35:39,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:35:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 17:35:42,772 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:35:42,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693693094] [2021-12-06 17:35:42,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693693094] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:35:42,772 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:35:42,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-12-06 17:35:42,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766182770] [2021-12-06 17:35:42,772 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:35:42,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 17:35:42,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:35:42,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 17:35:42,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2021-12-06 17:35:42,773 INFO L87 Difference]: Start difference. First operand 568 states and 766 transitions. Second operand has 21 states, 20 states have (on average 3.4) internal successors, (68), 21 states have internal predecessors, (68), 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) [2021-12-06 17:35:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:35:53,108 INFO L93 Difference]: Finished difference Result 688 states and 898 transitions. [2021-12-06 17:35:53,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-12-06 17:35:53,109 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.4) internal successors, (68), 21 states have internal predecessors, (68), 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 51 [2021-12-06 17:35:53,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:35:53,112 INFO L225 Difference]: With dead ends: 688 [2021-12-06 17:35:53,112 INFO L226 Difference]: Without dead ends: 688 [2021-12-06 17:35:53,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=440, Invalid=1630, Unknown=0, NotChecked=0, Total=2070 [2021-12-06 17:35:53,113 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 93 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 126 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:35:53,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 224 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 171 Invalid, 0 Unknown, 126 Unchecked, 2.4s Time] [2021-12-06 17:35:53,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-12-06 17:35:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 582. [2021-12-06 17:35:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 577 states have (on average 1.3604852686308493) internal successors, (785), 581 states have internal predecessors, (785), 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) [2021-12-06 17:35:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 785 transitions. [2021-12-06 17:35:53,120 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 785 transitions. Word has length 51 [2021-12-06 17:35:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:35:53,120 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 785 transitions. [2021-12-06 17:35:53,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.4) internal successors, (68), 21 states have internal predecessors, (68), 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) [2021-12-06 17:35:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 785 transitions. [2021-12-06 17:35:53,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 17:35:53,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:35:53,121 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:35:53,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2021-12-06 17:35:53,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:35:53,322 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:35:53,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:35:53,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1195941585, now seen corresponding path program 3 times [2021-12-06 17:35:53,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:35:53,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888881873] [2021-12-06 17:35:53,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:35:53,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:35:53,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:35:53,327 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:35:53,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-12-06 17:35:53,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-06 17:35:53,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:35:53,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 17:35:53,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:35:53,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:35:54,184 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 17:35:54,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:35:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 17:35:54,479 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:35:54,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888881873] [2021-12-06 17:35:54,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888881873] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:35:54,479 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:35:54,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-12-06 17:35:54,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285457408] [2021-12-06 17:35:54,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:35:54,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:35:54,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:35:54,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:35:54,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:35:54,480 INFO L87 Difference]: Start difference. First operand 582 states and 785 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 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) [2021-12-06 17:35:54,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:35:54,602 INFO L93 Difference]: Finished difference Result 663 states and 865 transitions. [2021-12-06 17:35:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:35:54,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 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 51 [2021-12-06 17:35:54,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:35:54,604 INFO L225 Difference]: With dead ends: 663 [2021-12-06 17:35:54,604 INFO L226 Difference]: Without dead ends: 663 [2021-12-06 17:35:54,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:35:54,605 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:35:54,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 65 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2021-12-06 17:35:54,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2021-12-06 17:35:54,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 514. [2021-12-06 17:35:54,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 509 states have (on average 1.3320235756385068) internal successors, (678), 513 states have internal predecessors, (678), 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) [2021-12-06 17:35:54,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 678 transitions. [2021-12-06 17:35:54,612 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 678 transitions. Word has length 51 [2021-12-06 17:35:54,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:35:54,612 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 678 transitions. [2021-12-06 17:35:54,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 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) [2021-12-06 17:35:54,612 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 678 transitions. [2021-12-06 17:35:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-06 17:35:54,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:35:54,612 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:35:54,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-12-06 17:35:54,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:35:54,814 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:35:54,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:35:54,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1580560235, now seen corresponding path program 3 times [2021-12-06 17:35:54,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:35:54,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793190276] [2021-12-06 17:35:54,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:35:54,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:35:54,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:35:54,819 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:35:54,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-12-06 17:35:55,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-06 17:35:55,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:35:55,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 17:35:55,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:35:55,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:35:55,795 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-06 17:35:55,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:35:55,795 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:35:55,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793190276] [2021-12-06 17:35:55,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793190276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:35:55,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:35:55,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:35:55,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432552467] [2021-12-06 17:35:55,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:35:55,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:35:55,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:35:55,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:35:55,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:35:55,797 INFO L87 Difference]: Start difference. First operand 514 states and 678 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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) [2021-12-06 17:35:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:35:55,827 INFO L93 Difference]: Finished difference Result 602 states and 784 transitions. [2021-12-06 17:35:55,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:35:55,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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 [2021-12-06 17:35:55,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:35:55,830 INFO L225 Difference]: With dead ends: 602 [2021-12-06 17:35:55,830 INFO L226 Difference]: Without dead ends: 602 [2021-12-06 17:35:55,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:35:55,831 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:35:55,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 65 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 28 Unchecked, 0.0s Time] [2021-12-06 17:35:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-12-06 17:35:55,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 344. [2021-12-06 17:35:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.2920353982300885) internal successors, (438), 343 states have internal predecessors, (438), 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) [2021-12-06 17:35:55,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 438 transitions. [2021-12-06 17:35:55,838 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 438 transitions. Word has length 52 [2021-12-06 17:35:55,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:35:55,838 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 438 transitions. [2021-12-06 17:35:55,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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) [2021-12-06 17:35:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 438 transitions. [2021-12-06 17:35:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-06 17:35:55,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:35:55,839 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:35:55,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2021-12-06 17:35:56,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:35:56,041 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:35:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:35:56,042 INFO L85 PathProgramCache]: Analyzing trace with hash 558307894, now seen corresponding path program 3 times [2021-12-06 17:35:56,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:35:56,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788327977] [2021-12-06 17:35:56,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:35:56,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:35:56,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:35:56,046 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:35:56,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-12-06 17:35:56,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-06 17:35:56,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:35:56,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 17:35:56,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:35:56,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:35:56,995 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 23 proven. 52 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-06 17:35:56,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:36:00,980 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-06 17:36:00,980 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:36:00,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788327977] [2021-12-06 17:36:00,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788327977] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:36:00,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:36:00,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2021-12-06 17:36:00,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814878609] [2021-12-06 17:36:00,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:36:00,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-06 17:36:00,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:36:00,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-06 17:36:00,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2021-12-06 17:36:00,981 INFO L87 Difference]: Start difference. First operand 344 states and 438 transitions. Second operand has 27 states, 27 states have (on average 3.6296296296296298) internal successors, (98), 27 states have internal predecessors, (98), 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) [2021-12-06 17:36:04,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:04,781 INFO L93 Difference]: Finished difference Result 509 states and 651 transitions. [2021-12-06 17:36:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-06 17:36:04,783 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.6296296296296298) internal successors, (98), 27 states have internal predecessors, (98), 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 55 [2021-12-06 17:36:04,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:04,786 INFO L225 Difference]: With dead ends: 509 [2021-12-06 17:36:04,786 INFO L226 Difference]: Without dead ends: 508 [2021-12-06 17:36:04,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=232, Invalid=1328, Unknown=0, NotChecked=0, Total=1560 [2021-12-06 17:36:04,787 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 87 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:04,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 212 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 265 Invalid, 0 Unknown, 44 Unchecked, 1.2s Time] [2021-12-06 17:36:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2021-12-06 17:36:04,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 495. [2021-12-06 17:36:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.2918367346938775) internal successors, (633), 494 states have internal predecessors, (633), 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) [2021-12-06 17:36:04,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 633 transitions. [2021-12-06 17:36:04,799 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 633 transitions. Word has length 55 [2021-12-06 17:36:04,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:04,799 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 633 transitions. [2021-12-06 17:36:04,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.6296296296296298) internal successors, (98), 27 states have internal predecessors, (98), 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) [2021-12-06 17:36:04,799 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 633 transitions. [2021-12-06 17:36:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 17:36:04,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:04,800 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:04,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (42)] Ended with exit code 0 [2021-12-06 17:36:05,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:36:05,002 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:36:05,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:05,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1694913281, now seen corresponding path program 3 times [2021-12-06 17:36:05,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:36:05,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452084323] [2021-12-06 17:36:05,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:36:05,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:36:05,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:36:05,007 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:36:05,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-12-06 17:36:05,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-12-06 17:36:05,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:36:05,162 WARN L261 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 17:36:05,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:36:05,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:36:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-06 17:36:05,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:36:05,802 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:36:05,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452084323] [2021-12-06 17:36:05,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452084323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:36:05,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:36:05,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:36:05,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160039739] [2021-12-06 17:36:05,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:36:05,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:36:05,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:36:05,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:36:05,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:36:05,803 INFO L87 Difference]: Start difference. First operand 495 states and 633 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2021-12-06 17:36:06,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:06,047 INFO L93 Difference]: Finished difference Result 496 states and 621 transitions. [2021-12-06 17:36:06,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:36:06,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 58 [2021-12-06 17:36:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:06,050 INFO L225 Difference]: With dead ends: 496 [2021-12-06 17:36:06,050 INFO L226 Difference]: Without dead ends: 496 [2021-12-06 17:36:06,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:36:06,050 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 66 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:06,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 23 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:36:06,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-12-06 17:36:06,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 491. [2021-12-06 17:36:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 487 states have (on average 1.264887063655031) internal successors, (616), 490 states have internal predecessors, (616), 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) [2021-12-06 17:36:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 616 transitions. [2021-12-06 17:36:06,056 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 616 transitions. Word has length 58 [2021-12-06 17:36:06,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:06,057 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 616 transitions. [2021-12-06 17:36:06,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2021-12-06 17:36:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 616 transitions. [2021-12-06 17:36:06,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 17:36:06,057 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:06,057 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:06,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2021-12-06 17:36:06,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:36:06,259 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:36:06,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:06,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1970979329, now seen corresponding path program 4 times [2021-12-06 17:36:06,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:36:06,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157082041] [2021-12-06 17:36:06,261 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 17:36:06,262 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:36:06,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:36:06,264 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:36:06,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-12-06 17:36:06,508 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 17:36:06,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:36:06,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 17:36:06,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:36:06,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:36:07,317 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-06 17:36:07,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:36:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 58 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-06 17:36:10,920 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:36:10,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157082041] [2021-12-06 17:36:10,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157082041] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:36:10,920 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:36:10,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2021-12-06 17:36:10,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131114330] [2021-12-06 17:36:10,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:36:10,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-06 17:36:10,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:36:10,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-06 17:36:10,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2021-12-06 17:36:10,921 INFO L87 Difference]: Start difference. First operand 491 states and 616 transitions. Second operand has 26 states, 25 states have (on average 3.68) internal successors, (92), 26 states have internal predecessors, (92), 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) [2021-12-06 17:36:24,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:24,234 INFO L93 Difference]: Finished difference Result 692 states and 855 transitions. [2021-12-06 17:36:24,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-12-06 17:36:24,236 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.68) internal successors, (92), 26 states have internal predecessors, (92), 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 59 [2021-12-06 17:36:24,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:24,239 INFO L225 Difference]: With dead ends: 692 [2021-12-06 17:36:24,239 INFO L226 Difference]: Without dead ends: 692 [2021-12-06 17:36:24,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=1197, Invalid=3359, Unknown=0, NotChecked=0, Total=4556 [2021-12-06 17:36:24,240 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 842 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:24,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [842 Valid, 195 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 708 Invalid, 0 Unknown, 91 Unchecked, 3.8s Time] [2021-12-06 17:36:24,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2021-12-06 17:36:24,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 584. [2021-12-06 17:36:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 580 states have (on average 1.263793103448276) internal successors, (733), 583 states have internal predecessors, (733), 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) [2021-12-06 17:36:24,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 733 transitions. [2021-12-06 17:36:24,247 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 733 transitions. Word has length 59 [2021-12-06 17:36:24,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:24,247 INFO L470 AbstractCegarLoop]: Abstraction has 584 states and 733 transitions. [2021-12-06 17:36:24,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.68) internal successors, (92), 26 states have internal predecessors, (92), 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) [2021-12-06 17:36:24,248 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 733 transitions. [2021-12-06 17:36:24,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-06 17:36:24,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:24,248 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:36:24,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (44)] Ended with exit code 0 [2021-12-06 17:36:24,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:36:24,449 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:36:24,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:24,451 INFO L85 PathProgramCache]: Analyzing trace with hash -412330512, now seen corresponding path program 5 times [2021-12-06 17:36:24,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:36:24,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486235809] [2021-12-06 17:36:24,452 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-06 17:36:24,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:36:24,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:36:24,455 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:36:24,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-12-06 17:36:24,769 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-12-06 17:36:24,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:36:24,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 17:36:24,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:36:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 39 proven. 52 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 17:36:25,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:36:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 39 proven. 52 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 17:36:26,031 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:36:26,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486235809] [2021-12-06 17:36:26,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486235809] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:36:26,031 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:36:26,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-12-06 17:36:26,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825968177] [2021-12-06 17:36:26,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:36:26,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-06 17:36:26,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:36:26,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-06 17:36:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2021-12-06 17:36:26,032 INFO L87 Difference]: Start difference. First operand 584 states and 733 transitions. Second operand has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 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) [2021-12-06 17:36:30,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:36:30,354 INFO L93 Difference]: Finished difference Result 809 states and 1007 transitions. [2021-12-06 17:36:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-12-06 17:36:30,356 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 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 63 [2021-12-06 17:36:30,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:36:30,359 INFO L225 Difference]: With dead ends: 809 [2021-12-06 17:36:30,359 INFO L226 Difference]: Without dead ends: 809 [2021-12-06 17:36:30,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=989, Invalid=3567, Unknown=0, NotChecked=0, Total=4556 [2021-12-06 17:36:30,361 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 909 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:36:30,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 497 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 17:36:30,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-12-06 17:36:30,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 577. [2021-12-06 17:36:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 573 states have (on average 1.256544502617801) internal successors, (720), 576 states have internal predecessors, (720), 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) [2021-12-06 17:36:30,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 720 transitions. [2021-12-06 17:36:30,372 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 720 transitions. Word has length 63 [2021-12-06 17:36:30,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:36:30,372 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 720 transitions. [2021-12-06 17:36:30,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 28 states have internal predecessors, (88), 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) [2021-12-06 17:36:30,373 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 720 transitions. [2021-12-06 17:36:30,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 17:36:30,374 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:36:30,374 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 1, 1, 1, 1, 1] [2021-12-06 17:36:30,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-12-06 17:36:30,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:36:30,575 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:36:30,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:36:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash 58542645, now seen corresponding path program 4 times [2021-12-06 17:36:30,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:36:30,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122487076] [2021-12-06 17:36:30,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 17:36:30,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:36:30,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:36:30,582 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:36:30,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-12-06 17:36:30,688 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 17:36:30,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:36:30,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-06 17:36:30,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:36:30,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:36:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:36:31,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:36:42,417 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:36:42,418 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:36:42,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122487076] [2021-12-06 17:36:42,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122487076] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:36:42,418 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:36:42,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 45 [2021-12-06 17:36:42,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037908036] [2021-12-06 17:36:42,418 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:36:42,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-12-06 17:36:42,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:36:42,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-12-06 17:36:42,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=545, Invalid=1525, Unknown=0, NotChecked=0, Total=2070 [2021-12-06 17:36:42,419 INFO L87 Difference]: Start difference. First operand 577 states and 720 transitions. Second operand has 46 states, 45 states have (on average 2.888888888888889) internal successors, (130), 46 states have internal predecessors, (130), 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) [2021-12-06 17:36:54,127 WARN L227 SmtUtils]: Spent 7.83s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:36:56,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:36:58,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:37:00,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:37:10,428 WARN L227 SmtUtils]: Spent 9.76s on a formula simplification that was a NOOP. DAG size: 168 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:37:25,199 WARN L227 SmtUtils]: Spent 13.78s on a formula simplification. DAG size of input: 163 DAG size of output: 163 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:37:32,833 WARN L227 SmtUtils]: Spent 7.10s on a formula simplification that was a NOOP. DAG size: 160 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:37:35,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:37:43,001 WARN L227 SmtUtils]: Spent 7.27s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:37:57,171 WARN L227 SmtUtils]: Spent 13.57s on a formula simplification. DAG size of input: 152 DAG size of output: 152 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:38:03,499 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:38:05,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:38:12,250 WARN L227 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 146 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:38:22,635 WARN L227 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 141 DAG size of output: 141 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:38:30,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:38:43,467 WARN L227 SmtUtils]: Spent 8.74s on a formula simplification. DAG size of input: 131 DAG size of output: 131 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:38:50,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:01,707 WARN L227 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 120 DAG size of output: 120 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:39:07,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:17,460 WARN L227 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 109 DAG size of output: 109 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 17:39:21,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:23,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:25,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:47,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:48,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:54,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:59,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:40:04,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:40:11,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:40:11,469 INFO L93 Difference]: Finished difference Result 6709 states and 8555 transitions. [2021-12-06 17:40:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-12-06 17:40:11,470 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.888888888888889) internal successors, (130), 46 states have internal predecessors, (130), 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 66 [2021-12-06 17:40:11,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:40:11,492 INFO L225 Difference]: With dead ends: 6709 [2021-12-06 17:40:11,492 INFO L226 Difference]: Without dead ends: 6709 [2021-12-06 17:40:11,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2827 ImplicationChecksByTransitivity, 166.7s TimeCoverageRelationStatistics Valid=2495, Invalid=5877, Unknown=0, NotChecked=0, Total=8372 [2021-12-06 17:40:11,494 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 6007 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 3704 mSolverCounterSat, 160 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6007 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 3934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 3704 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 49.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:40:11,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6007 Valid, 2601 Invalid, 3934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 3704 Invalid, 13 Unknown, 57 Unchecked, 49.5s Time] [2021-12-06 17:40:11,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6709 states. [2021-12-06 17:40:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6709 to 641. [2021-12-06 17:40:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 637 states have (on average 1.2558869701726845) internal successors, (800), 640 states have internal predecessors, (800), 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) [2021-12-06 17:40:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 800 transitions. [2021-12-06 17:40:11,531 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 800 transitions. Word has length 66 [2021-12-06 17:40:11,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:40:11,531 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 800 transitions. [2021-12-06 17:40:11,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.888888888888889) internal successors, (130), 46 states have internal predecessors, (130), 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) [2021-12-06 17:40:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 800 transitions. [2021-12-06 17:40:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 17:40:11,532 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:40:11,532 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:40:11,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (46)] Ended with exit code 0 [2021-12-06 17:40:11,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:40:11,733 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:40:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:40:11,735 INFO L85 PathProgramCache]: Analyzing trace with hash 800674021, now seen corresponding path program 4 times [2021-12-06 17:40:11,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:40:11,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133116317] [2021-12-06 17:40:11,736 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 17:40:11,736 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:40:11,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:40:11,739 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:40:11,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-12-06 17:40:11,963 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 17:40:11,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:40:11,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 17:40:11,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:40:11,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:40:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-06 17:40:13,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:40:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 1 proven. 78 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-06 17:40:15,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:40:15,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133116317] [2021-12-06 17:40:15,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133116317] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:40:15,819 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:40:15,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2021-12-06 17:40:15,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924434551] [2021-12-06 17:40:15,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:40:15,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 17:40:15,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:40:15,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 17:40:15,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2021-12-06 17:40:15,820 INFO L87 Difference]: Start difference. First operand 641 states and 800 transitions. Second operand has 19 states, 18 states have (on average 6.111111111111111) internal successors, (110), 19 states have internal predecessors, (110), 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) [2021-12-06 17:40:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:40:21,315 INFO L93 Difference]: Finished difference Result 760 states and 946 transitions. [2021-12-06 17:40:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-06 17:40:21,316 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.111111111111111) internal successors, (110), 19 states have internal predecessors, (110), 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 69 [2021-12-06 17:40:21,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:40:21,318 INFO L225 Difference]: With dead ends: 760 [2021-12-06 17:40:21,318 INFO L226 Difference]: Without dead ends: 760 [2021-12-06 17:40:21,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=281, Invalid=1279, Unknown=0, NotChecked=0, Total=1560 [2021-12-06 17:40:21,319 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 116 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:40:21,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 283 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 80 Unchecked, 0.5s Time] [2021-12-06 17:40:21,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2021-12-06 17:40:21,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 752. [2021-12-06 17:40:21,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 748 states have (on average 1.2566844919786095) internal successors, (940), 751 states have internal predecessors, (940), 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) [2021-12-06 17:40:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 940 transitions. [2021-12-06 17:40:21,330 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 940 transitions. Word has length 69 [2021-12-06 17:40:21,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:40:21,330 INFO L470 AbstractCegarLoop]: Abstraction has 752 states and 940 transitions. [2021-12-06 17:40:21,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.111111111111111) internal successors, (110), 19 states have internal predecessors, (110), 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) [2021-12-06 17:40:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 940 transitions. [2021-12-06 17:40:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-06 17:40:21,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:40:21,332 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:40:21,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-12-06 17:40:21,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:40:21,533 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:40:21,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:40:21,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1646672528, now seen corresponding path program 6 times [2021-12-06 17:40:21,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:40:21,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909410137] [2021-12-06 17:40:21,535 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 17:40:21,536 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:40:21,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:40:21,538 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:40:21,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-12-06 17:40:22,096 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-12-06 17:40:22,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:40:22,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-06 17:40:22,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:40:22,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:40:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 17:40:23,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:40:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 10 proven. 118 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-06 17:40:28,159 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:40:28,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909410137] [2021-12-06 17:40:28,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909410137] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:40:28,159 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:40:28,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2021-12-06 17:40:28,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223913210] [2021-12-06 17:40:28,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:40:28,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-06 17:40:28,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:40:28,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-06 17:40:28,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2021-12-06 17:40:28,161 INFO L87 Difference]: Start difference. First operand 752 states and 940 transitions. Second operand has 30 states, 29 states have (on average 3.8620689655172415) internal successors, (112), 30 states have internal predecessors, (112), 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) [2021-12-06 17:40:57,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:40:57,454 INFO L93 Difference]: Finished difference Result 1499 states and 1849 transitions. [2021-12-06 17:40:57,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-12-06 17:40:57,455 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.8620689655172415) internal successors, (112), 30 states have internal predecessors, (112), 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 73 [2021-12-06 17:40:57,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:40:57,460 INFO L225 Difference]: With dead ends: 1499 [2021-12-06 17:40:57,460 INFO L226 Difference]: Without dead ends: 1499 [2021-12-06 17:40:57,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3279 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=2494, Invalid=7208, Unknown=0, NotChecked=0, Total=9702 [2021-12-06 17:40:57,461 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 1108 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:40:57,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 302 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1145 Invalid, 0 Unknown, 124 Unchecked, 7.5s Time] [2021-12-06 17:40:57,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2021-12-06 17:40:57,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 939. [2021-12-06 17:40:57,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 935 states have (on average 1.2780748663101604) internal successors, (1195), 938 states have internal predecessors, (1195), 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) [2021-12-06 17:40:57,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1195 transitions. [2021-12-06 17:40:57,474 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1195 transitions. Word has length 73 [2021-12-06 17:40:57,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:40:57,474 INFO L470 AbstractCegarLoop]: Abstraction has 939 states and 1195 transitions. [2021-12-06 17:40:57,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.8620689655172415) internal successors, (112), 30 states have internal predecessors, (112), 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) [2021-12-06 17:40:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1195 transitions. [2021-12-06 17:40:57,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-06 17:40:57,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:40:57,475 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:40:57,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2021-12-06 17:40:57,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:40:57,676 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:40:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:40:57,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1283272503, now seen corresponding path program 7 times [2021-12-06 17:40:57,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:40:57,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324643949] [2021-12-06 17:40:57,680 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-06 17:40:57,680 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:40:57,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:40:57,681 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:40:57,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-12-06 17:40:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:57,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 17:40:57,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:40:57,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:40:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-06 17:40:58,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:41:03,132 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 9 proven. 96 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-06 17:41:03,132 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:41:03,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324643949] [2021-12-06 17:41:03,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324643949] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:41:03,133 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:41:03,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2021-12-06 17:41:03,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461775011] [2021-12-06 17:41:03,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:41:03,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-06 17:41:03,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:41:03,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-06 17:41:03,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2021-12-06 17:41:03,133 INFO L87 Difference]: Start difference. First operand 939 states and 1195 transitions. Second operand has 26 states, 25 states have (on average 4.4) internal successors, (110), 26 states have internal predecessors, (110), 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) [2021-12-06 17:41:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:41:17,313 INFO L93 Difference]: Finished difference Result 1163 states and 1458 transitions. [2021-12-06 17:41:17,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-12-06 17:41:17,314 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.4) internal successors, (110), 26 states have internal predecessors, (110), 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 73 [2021-12-06 17:41:17,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:41:17,318 INFO L225 Difference]: With dead ends: 1163 [2021-12-06 17:41:17,318 INFO L226 Difference]: Without dead ends: 1163 [2021-12-06 17:41:17,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1267 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=1163, Invalid=3393, Unknown=0, NotChecked=0, Total=4556 [2021-12-06 17:41:17,319 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 734 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:41:17,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 219 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 810 Invalid, 0 Unknown, 59 Unchecked, 4.4s Time] [2021-12-06 17:41:17,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2021-12-06 17:41:17,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1069. [2021-12-06 17:41:17,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1065 states have (on average 1.272300469483568) internal successors, (1355), 1068 states have internal predecessors, (1355), 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) [2021-12-06 17:41:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1355 transitions. [2021-12-06 17:41:17,330 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1355 transitions. Word has length 73 [2021-12-06 17:41:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:41:17,330 INFO L470 AbstractCegarLoop]: Abstraction has 1069 states and 1355 transitions. [2021-12-06 17:41:17,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.4) internal successors, (110), 26 states have internal predecessors, (110), 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) [2021-12-06 17:41:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1355 transitions. [2021-12-06 17:41:17,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-06 17:41:17,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:41:17,331 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:41:17,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2021-12-06 17:41:17,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:41:17,532 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:41:17,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:41:17,533 INFO L85 PathProgramCache]: Analyzing trace with hash 522756636, now seen corresponding path program 4 times [2021-12-06 17:41:17,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:41:17,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373497396] [2021-12-06 17:41:17,535 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 17:41:17,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:41:17,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:41:17,537 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:41:17,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-12-06 17:41:17,774 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 17:41:17,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:41:17,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 17:41:17,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:41:17,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:41:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 17:41:19,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:41:21,924 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 1 proven. 96 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-06 17:41:21,924 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:41:21,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373497396] [2021-12-06 17:41:21,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373497396] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:41:21,924 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:41:21,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2021-12-06 17:41:21,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550961613] [2021-12-06 17:41:21,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:41:21,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 17:41:21,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:41:21,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 17:41:21,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-12-06 17:41:21,925 INFO L87 Difference]: Start difference. First operand 1069 states and 1355 transitions. Second operand has 17 states, 16 states have (on average 7.375) internal successors, (118), 17 states have internal predecessors, (118), 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) [2021-12-06 17:41:28,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:41:28,974 INFO L93 Difference]: Finished difference Result 1088 states and 1357 transitions. [2021-12-06 17:41:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-06 17:41:28,975 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.375) internal successors, (118), 17 states have internal predecessors, (118), 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 73 [2021-12-06 17:41:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:41:28,979 INFO L225 Difference]: With dead ends: 1088 [2021-12-06 17:41:28,979 INFO L226 Difference]: Without dead ends: 1088 [2021-12-06 17:41:28,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 139 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=308, Invalid=1098, Unknown=0, NotChecked=0, Total=1406 [2021-12-06 17:41:28,980 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 119 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:41:28,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 244 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 75 Unchecked, 0.6s Time] [2021-12-06 17:41:28,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2021-12-06 17:41:28,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1063. [2021-12-06 17:41:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 1059 states have (on average 1.2577903682719547) internal successors, (1332), 1062 states have internal predecessors, (1332), 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) [2021-12-06 17:41:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1332 transitions. [2021-12-06 17:41:28,990 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1332 transitions. Word has length 73 [2021-12-06 17:41:28,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:41:28,990 INFO L470 AbstractCegarLoop]: Abstraction has 1063 states and 1332 transitions. [2021-12-06 17:41:28,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.375) internal successors, (118), 17 states have internal predecessors, (118), 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) [2021-12-06 17:41:28,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1332 transitions. [2021-12-06 17:41:28,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-06 17:41:28,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:41:28,991 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:41:29,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (50)] Ended with exit code 0 [2021-12-06 17:41:29,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:41:29,192 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:41:29,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:41:29,193 INFO L85 PathProgramCache]: Analyzing trace with hash 998204406, now seen corresponding path program 8 times [2021-12-06 17:41:29,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:41:29,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117218258] [2021-12-06 17:41:29,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:41:29,195 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:41:29,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:41:29,197 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:41:29,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-12-06 17:41:29,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:41:29,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:41:29,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 17:41:29,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:41:29,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:41:30,216 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 61 proven. 47 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:41:30,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:41:34,282 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 3 proven. 108 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 17:41:34,282 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:41:34,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117218258] [2021-12-06 17:41:34,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117218258] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:41:34,282 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:41:34,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25 [2021-12-06 17:41:34,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718201211] [2021-12-06 17:41:34,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:41:34,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-06 17:41:34,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:41:34,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-06 17:41:34,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2021-12-06 17:41:34,283 INFO L87 Difference]: Start difference. First operand 1063 states and 1332 transitions. Second operand has 25 states, 25 states have (on average 5.08) internal successors, (127), 25 states have internal predecessors, (127), 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) [2021-12-06 17:41:35,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:41:35,818 INFO L93 Difference]: Finished difference Result 1015 states and 1269 transitions. [2021-12-06 17:41:35,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:41:35,819 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.08) internal successors, (127), 25 states have internal predecessors, (127), 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 73 [2021-12-06 17:41:35,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:41:35,823 INFO L225 Difference]: With dead ends: 1015 [2021-12-06 17:41:35,823 INFO L226 Difference]: Without dead ends: 978 [2021-12-06 17:41:35,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2021-12-06 17:41:35,823 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 63 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:41:35,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 248 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 231 Invalid, 0 Unknown, 30 Unchecked, 1.3s Time] [2021-12-06 17:41:35,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2021-12-06 17:41:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2021-12-06 17:41:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.2618069815195072) internal successors, (1229), 977 states have internal predecessors, (1229), 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) [2021-12-06 17:41:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1229 transitions. [2021-12-06 17:41:35,833 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1229 transitions. Word has length 73 [2021-12-06 17:41:35,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:41:35,833 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1229 transitions. [2021-12-06 17:41:35,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.08) internal successors, (127), 25 states have internal predecessors, (127), 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) [2021-12-06 17:41:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1229 transitions. [2021-12-06 17:41:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-06 17:41:35,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:41:35,834 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:41:35,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-12-06 17:41:36,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:41:36,035 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:41:36,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:41:36,036 INFO L85 PathProgramCache]: Analyzing trace with hash 113578802, now seen corresponding path program 7 times [2021-12-06 17:41:36,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:41:36,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486066964] [2021-12-06 17:41:36,037 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-06 17:41:36,037 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:41:36,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:41:36,040 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:41:36,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-12-06 17:41:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:41:36,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-06 17:41:36,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:41:36,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:41:37,156 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 96 proven. 132 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 17:41:37,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:41:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:41:45,532 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:41:45,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486066964] [2021-12-06 17:41:45,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486066964] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:41:45,532 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:41:45,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 38 [2021-12-06 17:41:45,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381605099] [2021-12-06 17:41:45,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:41:45,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-12-06 17:41:45,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:41:45,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-12-06 17:41:45,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1236, Unknown=0, NotChecked=0, Total=1406 [2021-12-06 17:41:45,533 INFO L87 Difference]: Start difference. First operand 978 states and 1229 transitions. Second operand has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 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) [2021-12-06 17:42:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:42:35,919 INFO L93 Difference]: Finished difference Result 2349 states and 2924 transitions. [2021-12-06 17:42:35,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-12-06 17:42:35,920 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 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 74 [2021-12-06 17:42:35,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:42:35,928 INFO L225 Difference]: With dead ends: 2349 [2021-12-06 17:42:35,928 INFO L226 Difference]: Without dead ends: 2347 [2021-12-06 17:42:35,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 37.3s TimeCoverageRelationStatistics Valid=972, Invalid=5508, Unknown=0, NotChecked=0, Total=6480 [2021-12-06 17:42:35,929 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 501 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 363 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2021-12-06 17:42:35,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 885 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2286 Invalid, 0 Unknown, 363 Unchecked, 19.6s Time] [2021-12-06 17:42:35,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2021-12-06 17:42:35,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 938. [2021-12-06 17:42:35,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 934 states have (on average 1.2580299785867237) internal successors, (1175), 937 states have internal predecessors, (1175), 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) [2021-12-06 17:42:35,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1175 transitions. [2021-12-06 17:42:35,943 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1175 transitions. Word has length 74 [2021-12-06 17:42:35,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:42:35,943 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 1175 transitions. [2021-12-06 17:42:35,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 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) [2021-12-06 17:42:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1175 transitions. [2021-12-06 17:42:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-06 17:42:35,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:42:35,944 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:42:35,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (52)] Ended with exit code 0 [2021-12-06 17:42:36,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:42:36,145 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:42:36,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:42:36,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1750042493, now seen corresponding path program 8 times [2021-12-06 17:42:36,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:42:36,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944510675] [2021-12-06 17:42:36,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:42:36,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:42:36,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:42:36,150 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:42:36,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-12-06 17:42:36,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:42:36,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:42:36,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-06 17:42:36,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:42:36,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:42:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 17:42:37,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:42:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-06 17:42:42,934 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:42:42,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944510675] [2021-12-06 17:42:42,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944510675] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:42:42,934 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 17:42:42,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-12-06 17:42:42,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729676138] [2021-12-06 17:42:42,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 17:42:42,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-06 17:42:42,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:42:42,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-06 17:42:42,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2021-12-06 17:42:42,935 INFO L87 Difference]: Start difference. First operand 938 states and 1175 transitions. Second operand has 32 states, 31 states have (on average 4.0) internal successors, (124), 32 states have internal predecessors, (124), 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) [2021-12-06 17:44:04,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:44:04,536 INFO L93 Difference]: Finished difference Result 1697 states and 2057 transitions. [2021-12-06 17:44:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-12-06 17:44:04,538 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.0) internal successors, (124), 32 states have internal predecessors, (124), 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 83 [2021-12-06 17:44:04,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:44:04,543 INFO L225 Difference]: With dead ends: 1697 [2021-12-06 17:44:04,543 INFO L226 Difference]: Without dead ends: 1697 [2021-12-06 17:44:04,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4367 ImplicationChecksByTransitivity, 64.6s TimeCoverageRelationStatistics Valid=3783, Invalid=11223, Unknown=0, NotChecked=0, Total=15006 [2021-12-06 17:44:04,545 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 1008 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 2912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 132 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-12-06 17:44:04,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 727 Invalid, 2912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2609 Invalid, 0 Unknown, 132 Unchecked, 20.9s Time] [2021-12-06 17:44:04,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2021-12-06 17:44:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1150. [2021-12-06 17:44:04,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1146 states have (on average 1.2897033158813263) internal successors, (1478), 1149 states have internal predecessors, (1478), 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) [2021-12-06 17:44:04,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1478 transitions. [2021-12-06 17:44:04,563 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1478 transitions. Word has length 83 [2021-12-06 17:44:04,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:44:04,564 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 1478 transitions. [2021-12-06 17:44:04,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.0) internal successors, (124), 32 states have internal predecessors, (124), 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) [2021-12-06 17:44:04,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1478 transitions. [2021-12-06 17:44:04,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-06 17:44:04,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:44:04,565 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:44:04,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2021-12-06 17:44:04,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:44:04,766 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 11 more)] === [2021-12-06 17:44:04,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:44:04,767 INFO L85 PathProgramCache]: Analyzing trace with hash -477603015, now seen corresponding path program 9 times [2021-12-06 17:44:04,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:44:04,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097988422] [2021-12-06 17:44:04,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:44:04,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:44:04,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:44:04,771 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:44:04,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a13bc10-6993-4ca3-b565-fba22cb0d68c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-12-06 17:44:05,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-06 17:44:05,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:44:05,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 88 conjunts are in the unsatisfiable core [2021-12-06 17:44:05,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:44:05,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-06 17:44:05,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 48 [2021-12-06 17:44:05,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:05,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 48 [2021-12-06 17:44:06,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:06,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:06,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:06,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:06,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:06,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:06,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 48 [2021-12-06 17:44:09,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:09,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,059 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:44:10,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 511 treesize of output 273 [2021-12-06 17:44:10,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:10,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 298 [2021-12-06 17:44:23,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:44:23,562 INFO L244 Elim1Store]: Index analysis took 531 ms [2021-12-06 17:44:24,831 INFO L354 Elim1Store]: treesize reduction 447, result has 44.3 percent of original size [2021-12-06 17:44:24,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 28 select indices, 28 select index equivalence classes, 326 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 52 case distinctions, treesize of input 427 treesize of output 473