./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0 --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 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:24:09,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:24:09,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:24:09,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:24:09,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:24:09,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:24:09,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:24:09,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:24:09,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:24:09,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:24:09,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:24:09,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:24:09,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:24:09,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:24:09,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:24:09,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:24:09,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:24:09,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:24:09,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:24:09,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:24:09,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:24:09,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:24:09,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:24:09,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:24:09,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:24:09,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:24:09,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:24:09,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:24:09,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:24:09,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:24:09,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:24:09,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:24:09,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:24:09,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:24:09,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:24:09,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:24:09,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:24:09,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:24:09,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:24:09,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:24:09,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:24:09,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-22 14:24:10,026 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:24:10,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:24:10,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:24:10,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:24:10,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:24:10,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:24:10,030 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:24:10,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:24:10,030 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:24:10,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 14:24:10,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:24:10,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:24:10,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:24:10,032 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 14:24:10,033 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 14:24:10,033 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 14:24:10,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:24:10,033 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 14:24:10,034 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:24:10,034 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:24:10,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:24:10,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:24:10,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:24:10,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:24:10,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:24:10,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:24:10,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:24:10,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:24:10,036 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:24:10,038 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_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2021-11-22 14:24:10,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:24:10,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:24:10,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:24:10,339 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:24:10,340 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:24:10,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2021-11-22 14:24:10,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data/9b098f2a8/c20fe957429449c2a6bdd2f7b166421e/FLAG51b5249ee [2021-11-22 14:24:11,064 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:24:11,065 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2021-11-22 14:24:11,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data/9b098f2a8/c20fe957429449c2a6bdd2f7b166421e/FLAG51b5249ee [2021-11-22 14:24:11,259 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data/9b098f2a8/c20fe957429449c2a6bdd2f7b166421e [2021-11-22 14:24:11,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:24:11,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:24:11,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:24:11,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:24:11,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:24:11,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:24:11" (1/1) ... [2021-11-22 14:24:11,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7e855e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:11, skipping insertion in model container [2021-11-22 14:24:11,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:24:11" (1/1) ... [2021-11-22 14:24:11,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:24:11,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:24:11,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2021-11-22 14:24:11,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2021-11-22 14:24:11,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:24:12,000 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-22 14:24:12,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38e81a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:12, skipping insertion in model container [2021-11-22 14:24:12,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:24:12,002 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-22 14:24:12,003 INFO L158 Benchmark]: Toolchain (without parser) took 739.74ms. Allocated memory is still 88.1MB. Free memory was 65.5MB in the beginning and 49.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-22 14:24:12,004 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 64.5MB in the beginning and 64.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:24:12,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 737.60ms. Allocated memory is still 88.1MB. Free memory was 65.5MB in the beginning and 49.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-22 14:24:12,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 64.5MB in the beginning and 64.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 737.60ms. Allocated memory is still 88.1MB. Free memory was 65.5MB in the beginning and 49.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0 --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 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:24:14,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:24:14,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:24:14,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:24:14,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:24:14,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:24:14,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:24:14,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:24:14,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:24:14,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:24:14,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:24:14,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:24:14,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:24:14,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:24:14,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:24:14,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:24:14,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:24:14,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:24:14,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:24:14,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:24:14,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:24:14,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:24:14,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:24:14,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:24:14,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:24:14,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:24:14,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:24:14,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:24:14,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:24:14,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:24:14,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:24:14,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:24:14,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:24:14,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:24:14,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:24:14,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:24:14,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:24:14,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:24:14,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:24:14,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:24:14,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:24:14,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-22 14:24:14,439 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:24:14,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:24:14,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:24:14,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:24:14,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:24:14,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:24:14,447 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:24:14,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:24:14,448 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:24:14,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 14:24:14,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:24:14,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:24:14,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:24:14,450 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 14:24:14,450 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 14:24:14,450 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 14:24:14,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:24:14,451 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 14:24:14,451 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 14:24:14,451 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 14:24:14,451 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:24:14,452 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:24:14,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:24:14,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:24:14,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:24:14,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:24:14,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:24:14,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:24:14,454 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 14:24:14,454 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 14:24:14,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:24:14,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 14:24:14,455 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_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2021-11-22 14:24:14,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:24:14,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:24:14,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:24:14,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:24:14,879 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:24:14,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2021-11-22 14:24:14,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data/1de22e8dd/47d16583c6c64b778a0c809951473f64/FLAG5e7e60ad9 [2021-11-22 14:24:15,776 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:24:15,777 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2021-11-22 14:24:15,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data/1de22e8dd/47d16583c6c64b778a0c809951473f64/FLAG5e7e60ad9 [2021-11-22 14:24:15,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/data/1de22e8dd/47d16583c6c64b778a0c809951473f64 [2021-11-22 14:24:15,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:24:15,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:24:15,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:24:15,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:24:15,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:24:15,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c071cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:15, skipping insertion in model container [2021-11-22 14:24:15,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:24:15" (1/1) ... [2021-11-22 14:24:15,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:24:16,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:24:16,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2021-11-22 14:24:16,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2021-11-22 14:24:16,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:24:16,652 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-22 14:24:16,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:24:16,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2021-11-22 14:24:16,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2021-11-22 14:24:16,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:24:16,883 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:24:16,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2021-11-22 14:24:17,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2021-11-22 14:24:17,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:24:17,096 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:24:17,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17 WrapperNode [2021-11-22 14:24:17,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:24:17,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:24:17,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:24:17,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:24:17,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,299 INFO L137 Inliner]: procedures = 180, calls = 439, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 1623 [2021-11-22 14:24:17,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:24:17,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:24:17,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:24:17,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:24:17,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:24:17,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:24:17,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:24:17,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:24:17,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (1/1) ... [2021-11-22 14:24:17,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:24:17,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:24:17,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:24:17,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:24:17,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-22 14:24:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 14:24:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:24:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:24:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 14:24:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:24:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 14:24:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:24:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:24:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 14:24:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 14:24:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:24:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:24:17,964 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:24:17,966 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:24:24,913 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:24:24,946 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:24:24,947 INFO L301 CfgBuilder]: Removed 92 assume(true) statements. [2021-11-22 14:24:24,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:24 BoogieIcfgContainer [2021-11-22 14:24:24,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:24:24,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:24:24,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:24:24,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:24:24,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:24:15" (1/3) ... [2021-11-22 14:24:24,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ceed7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:24, skipping insertion in model container [2021-11-22 14:24:24,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:17" (2/3) ... [2021-11-22 14:24:24,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ceed7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:24, skipping insertion in model container [2021-11-22 14:24:24,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:24" (3/3) ... [2021-11-22 14:24:24,963 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-2.i [2021-11-22 14:24:24,968 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:24:24,969 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 838 error locations. [2021-11-22 14:24:25,014 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:24:25,021 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 [2021-11-22 14:24:25,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 838 error locations. [2021-11-22 14:24:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 1677 states, 838 states have (on average 2.2338902147971362) internal successors, (1872), 1676 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 14:24:25,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:25,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 14:24:25,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:24:25,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:25,089 INFO L85 PathProgramCache]: Analyzing trace with hash 28698764, now seen corresponding path program 1 times [2021-11-22 14:24:25,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:25,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429280634] [2021-11-22 14:24:25,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:25,102 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:25,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:25,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:25,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 14:24:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:25,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 14:24:25,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:25,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:25,328 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:25,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429280634] [2021-11-22 14:24:25,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429280634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:25,329 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:25,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 14:24:25,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300215386] [2021-11-22 14:24:25,332 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:25,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:24:25,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:25,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:24:25,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:24:25,390 INFO L87 Difference]: Start difference. First operand has 1677 states, 838 states have (on average 2.2338902147971362) internal successors, (1872), 1676 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:25,600 INFO L93 Difference]: Finished difference Result 1659 states and 1749 transitions. [2021-11-22 14:24:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:24:25,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-11-22 14:24:25,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:25,633 INFO L225 Difference]: With dead ends: 1659 [2021-11-22 14:24:25,633 INFO L226 Difference]: Without dead ends: 1657 [2021-11-22 14:24:25,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:24:25,639 INFO L933 BasicCegarLoop]: 1749 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:25,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:24:25,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2021-11-22 14:24:25,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1657. [2021-11-22 14:24:25,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 829 states have (on average 2.1073582629674306) internal successors, (1747), 1656 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 1747 transitions. [2021-11-22 14:24:25,769 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 1747 transitions. Word has length 5 [2021-11-22 14:24:25,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:25,769 INFO L470 AbstractCegarLoop]: Abstraction has 1657 states and 1747 transitions. [2021-11-22 14:24:25,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 1747 transitions. [2021-11-22 14:24:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 14:24:25,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:25,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 14:24:25,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:24:25,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:24:25,981 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:24:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:25,983 INFO L85 PathProgramCache]: Analyzing trace with hash 28698826, now seen corresponding path program 1 times [2021-11-22 14:24:25,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:25,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497379187] [2021-11-22 14:24:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:25,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:25,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:25,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:25,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 14:24:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:26,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:24:26,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:26,278 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 [2021-11-22 14:24:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:26,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:26,336 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:26,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497379187] [2021-11-22 14:24:26,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497379187] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:26,337 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:26,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 14:24:26,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103382790] [2021-11-22 14:24:26,337 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:26,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:24:26,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:26,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:24:26,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:24:26,341 INFO L87 Difference]: Start difference. First operand 1657 states and 1747 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:29,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:29,816 INFO L93 Difference]: Finished difference Result 1928 states and 2056 transitions. [2021-11-22 14:24:29,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:24:29,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-11-22 14:24:29,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:29,828 INFO L225 Difference]: With dead ends: 1928 [2021-11-22 14:24:29,828 INFO L226 Difference]: Without dead ends: 1928 [2021-11-22 14:24:29,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:24:29,830 INFO L933 BasicCegarLoop]: 1184 mSDtfsCounter, 1419 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:29,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 1550 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-22 14:24:29,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2021-11-22 14:24:29,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1642. [2021-11-22 14:24:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 905 states have (on average 1.9790055248618785) internal successors, (1791), 1641 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1791 transitions. [2021-11-22 14:24:29,881 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1791 transitions. Word has length 5 [2021-11-22 14:24:29,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:29,881 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 1791 transitions. [2021-11-22 14:24:29,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:29,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1791 transitions. [2021-11-22 14:24:29,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 14:24:29,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:29,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 14:24:29,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:24:30,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:24:30,094 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:24:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:30,095 INFO L85 PathProgramCache]: Analyzing trace with hash 28698827, now seen corresponding path program 1 times [2021-11-22 14:24:30,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:30,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64828772] [2021-11-22 14:24:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:30,096 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:30,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:30,099 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:30,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 14:24:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:30,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:24:30,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:30,267 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 [2021-11-22 14:24:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:30,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:30,381 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:30,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64828772] [2021-11-22 14:24:30,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64828772] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:30,382 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:30,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-22 14:24:30,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46645177] [2021-11-22 14:24:30,382 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:30,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:24:30,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:30,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:24:30,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:24:30,384 INFO L87 Difference]: Start difference. First operand 1642 states and 1791 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:38,891 INFO L93 Difference]: Finished difference Result 2231 states and 2426 transitions. [2021-11-22 14:24:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:24:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 5 [2021-11-22 14:24:38,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:38,904 INFO L225 Difference]: With dead ends: 2231 [2021-11-22 14:24:38,905 INFO L226 Difference]: Without dead ends: 2231 [2021-11-22 14:24:38,905 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 [2021-11-22 14:24:38,906 INFO L933 BasicCegarLoop]: 1524 mSDtfsCounter, 855 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:38,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 2950 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-22 14:24:38,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-11-22 14:24:38,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1798. [2021-11-22 14:24:38,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1071 states have (on average 1.9579831932773109) internal successors, (2097), 1797 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2097 transitions. [2021-11-22 14:24:38,957 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2097 transitions. Word has length 5 [2021-11-22 14:24:38,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:38,957 INFO L470 AbstractCegarLoop]: Abstraction has 1798 states and 2097 transitions. [2021-11-22 14:24:38,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2097 transitions. [2021-11-22 14:24:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 14:24:38,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:38,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 14:24:38,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:24:39,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:24:39,169 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:24:39,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash 891404513, now seen corresponding path program 1 times [2021-11-22 14:24:39,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:39,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136225119] [2021-11-22 14:24:39,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:39,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:39,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:39,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:39,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 14:24:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:39,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:24:39,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:39,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:39,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:39,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136225119] [2021-11-22 14:24:39,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136225119] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:39,348 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:39,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 14:24:39,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518818961] [2021-11-22 14:24:39,349 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:39,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:24:39,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:39,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:24:39,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:24:39,351 INFO L87 Difference]: Start difference. First operand 1798 states and 2097 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:39,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:39,533 INFO L93 Difference]: Finished difference Result 3393 states and 3979 transitions. [2021-11-22 14:24:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:24:39,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 [2021-11-22 14:24:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:39,553 INFO L225 Difference]: With dead ends: 3393 [2021-11-22 14:24:39,553 INFO L226 Difference]: Without dead ends: 3393 [2021-11-22 14:24:39,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:24:39,557 INFO L933 BasicCegarLoop]: 1639 mSDtfsCounter, 4281 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:39,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4281 Valid, 3274 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:24:39,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2021-11-22 14:24:39,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 2766. [2021-11-22 14:24:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2039 states have (on average 1.948504168710152) internal successors, (3973), 2765 states have internal predecessors, (3973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3973 transitions. [2021-11-22 14:24:39,659 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3973 transitions. Word has length 6 [2021-11-22 14:24:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:39,663 INFO L470 AbstractCegarLoop]: Abstraction has 2766 states and 3973 transitions. [2021-11-22 14:24:39,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3973 transitions. [2021-11-22 14:24:39,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:24:39,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:39,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:24:39,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:24:39,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:24:39,882 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:24:39,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:39,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2013913556, now seen corresponding path program 1 times [2021-11-22 14:24:39,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:39,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036467539] [2021-11-22 14:24:39,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:39,887 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:39,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:39,889 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:39,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 14:24:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:40,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:24:40,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:40,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:40,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:40,135 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:40,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036467539] [2021-11-22 14:24:40,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036467539] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:40,135 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:40,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 14:24:40,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39414072] [2021-11-22 14:24:40,136 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:40,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:24:40,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:40,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:24:40,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:24:40,138 INFO L87 Difference]: Start difference. First operand 2766 states and 3973 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) [2021-11-22 14:24:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:40,195 INFO L93 Difference]: Finished difference Result 2706 states and 3887 transitions. [2021-11-22 14:24:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:24:40,196 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 11 [2021-11-22 14:24:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:40,213 INFO L225 Difference]: With dead ends: 2706 [2021-11-22 14:24:40,214 INFO L226 Difference]: Without dead ends: 2706 [2021-11-22 14:24:40,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:24:40,216 INFO L933 BasicCegarLoop]: 1598 mSDtfsCounter, 3200 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3200 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:40,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3200 Valid, 1605 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:24:40,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2021-11-22 14:24:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2706. [2021-11-22 14:24:40,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 2003 states have (on average 1.9405891163255118) internal successors, (3887), 2705 states have internal predecessors, (3887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3887 transitions. [2021-11-22 14:24:40,292 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3887 transitions. Word has length 11 [2021-11-22 14:24:40,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:40,292 INFO L470 AbstractCegarLoop]: Abstraction has 2706 states and 3887 transitions. [2021-11-22 14:24:40,293 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) [2021-11-22 14:24:40,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3887 transitions. [2021-11-22 14:24:40,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 14:24:40,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:40,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:24:40,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-22 14:24:40,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:24:40,505 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:24:40,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:40,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1659327634, now seen corresponding path program 1 times [2021-11-22 14:24:40,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:40,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182179576] [2021-11-22 14:24:40,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:40,508 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:40,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:40,510 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:40,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-22 14:24:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:40,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:24:40,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:40,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:40,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:40,792 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:40,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182179576] [2021-11-22 14:24:40,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182179576] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:40,792 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:40,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-22 14:24:40,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963102166] [2021-11-22 14:24:40,793 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:40,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 14:24:40,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:40,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:24:40,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:24:40,795 INFO L87 Difference]: Start difference. First operand 2706 states and 3887 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:40,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:40,908 INFO L93 Difference]: Finished difference Result 2678 states and 3831 transitions. [2021-11-22 14:24:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:24:40,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 [2021-11-22 14:24:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:40,924 INFO L225 Difference]: With dead ends: 2678 [2021-11-22 14:24:40,925 INFO L226 Difference]: Without dead ends: 2678 [2021-11-22 14:24:40,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:24:40,926 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 1571 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:40,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1571 Valid, 3113 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:24:40,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2021-11-22 14:24:40,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2676. [2021-11-22 14:24:40,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 1987 states have (on average 1.9270256668344237) internal successors, (3829), 2675 states have internal predecessors, (3829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:40,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 3829 transitions. [2021-11-22 14:24:40,996 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 3829 transitions. Word has length 13 [2021-11-22 14:24:40,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:40,996 INFO L470 AbstractCegarLoop]: Abstraction has 2676 states and 3829 transitions. [2021-11-22 14:24:40,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:40,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 3829 transitions. [2021-11-22 14:24:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 14:24:40,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:40,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:24:41,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-22 14:24:41,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:24:41,217 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:24:41,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:41,218 INFO L85 PathProgramCache]: Analyzing trace with hash 913198236, now seen corresponding path program 1 times [2021-11-22 14:24:41,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:41,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208666189] [2021-11-22 14:24:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:41,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:41,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:41,220 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:41,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-22 14:24:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:41,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:24:41,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:41,430 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 [2021-11-22 14:24:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:41,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:41,626 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:41,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208666189] [2021-11-22 14:24:41,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208666189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:41,626 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:41,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 14:24:41,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441086239] [2021-11-22 14:24:41,627 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:41,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:24:41,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:41,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:24:41,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:24:41,628 INFO L87 Difference]: Start difference. First operand 2676 states and 3829 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:46,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:24:46,877 INFO L93 Difference]: Finished difference Result 4223 states and 5832 transitions. [2021-11-22 14:24:46,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:24:46,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-22 14:24:46,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:24:46,903 INFO L225 Difference]: With dead ends: 4223 [2021-11-22 14:24:46,904 INFO L226 Difference]: Without dead ends: 4223 [2021-11-22 14:24:46,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:24:46,905 INFO L933 BasicCegarLoop]: 793 mSDtfsCounter, 3341 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:24:46,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3341 Valid, 1742 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-22 14:24:46,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2021-11-22 14:24:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 2672. [2021-11-22 14:24:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 1987 states have (on average 1.9229994967287367) internal successors, (3821), 2671 states have internal predecessors, (3821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:46,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3821 transitions. [2021-11-22 14:24:46,981 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3821 transitions. Word has length 27 [2021-11-22 14:24:46,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:24:46,981 INFO L470 AbstractCegarLoop]: Abstraction has 2672 states and 3821 transitions. [2021-11-22 14:24:46,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:24:46,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3821 transitions. [2021-11-22 14:24:46,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 14:24:46,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:24:46,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:24:46,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-22 14:24:47,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:24:47,197 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:24:47,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:24:47,197 INFO L85 PathProgramCache]: Analyzing trace with hash 913198237, now seen corresponding path program 1 times [2021-11-22 14:24:47,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:24:47,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543525754] [2021-11-22 14:24:47,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:24:47,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:24:47,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:24:47,199 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:24:47,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-22 14:24:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:24:47,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:24:47,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:24:47,407 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 [2021-11-22 14:24:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:47,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:24:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:24:48,130 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:24:48,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543525754] [2021-11-22 14:24:48,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543525754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:24:48,130 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:24:48,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 14:24:48,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021610933] [2021-11-22 14:24:48,131 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:24:48,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:24:48,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:24:48,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:24:48,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:24:48,132 INFO L87 Difference]: Start difference. First operand 2672 states and 3821 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:00,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:00,253 INFO L93 Difference]: Finished difference Result 3484 states and 4679 transitions. [2021-11-22 14:25:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 14:25:00,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 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 27 [2021-11-22 14:25:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:00,271 INFO L225 Difference]: With dead ends: 3484 [2021-11-22 14:25:00,271 INFO L226 Difference]: Without dead ends: 3484 [2021-11-22 14:25:00,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:25:00,272 INFO L933 BasicCegarLoop]: 1127 mSDtfsCounter, 2400 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:00,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2400 Valid, 3330 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2665 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2021-11-22 14:25:00,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2021-11-22 14:25:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 2668. [2021-11-22 14:25:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 1987 states have (on average 1.9189733266230498) internal successors, (3813), 2667 states have internal predecessors, (3813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 3813 transitions. [2021-11-22 14:25:00,339 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 3813 transitions. Word has length 27 [2021-11-22 14:25:00,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:00,340 INFO L470 AbstractCegarLoop]: Abstraction has 2668 states and 3813 transitions. [2021-11-22 14:25:00,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:00,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 3813 transitions. [2021-11-22 14:25:00,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-22 14:25:00,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:00,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:00,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-22 14:25:00,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:00,556 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:00,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:00,556 INFO L85 PathProgramCache]: Analyzing trace with hash 944973104, now seen corresponding path program 1 times [2021-11-22 14:25:00,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:00,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875465370] [2021-11-22 14:25:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:00,557 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:00,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:00,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:00,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-22 14:25:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:00,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:25:00,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:00,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:00,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:00,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:00,985 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:00,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875465370] [2021-11-22 14:25:00,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875465370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:00,985 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:00,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-22 14:25:00,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093741778] [2021-11-22 14:25:00,986 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:00,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:25:00,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:00,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:25:00,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:25:00,987 INFO L87 Difference]: Start difference. First operand 2668 states and 3813 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:01,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:01,066 INFO L93 Difference]: Finished difference Result 2656 states and 3793 transitions. [2021-11-22 14:25:01,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:25:01,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-22 14:25:01,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:01,081 INFO L225 Difference]: With dead ends: 2656 [2021-11-22 14:25:01,082 INFO L226 Difference]: Without dead ends: 2656 [2021-11-22 14:25:01,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:25:01,083 INFO L933 BasicCegarLoop]: 1547 mSDtfsCounter, 1547 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:01,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 3084 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:25:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2021-11-22 14:25:01,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2656. [2021-11-22 14:25:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 1975 states have (on average 1.9205063291139242) internal successors, (3793), 2655 states have internal predecessors, (3793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:01,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 3793 transitions. [2021-11-22 14:25:01,152 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 3793 transitions. Word has length 42 [2021-11-22 14:25:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:01,154 INFO L470 AbstractCegarLoop]: Abstraction has 2656 states and 3793 transitions. [2021-11-22 14:25:01,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 3793 transitions. [2021-11-22 14:25:01,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 14:25:01,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:01,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:01,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:01,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:01,372 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:01,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash 29098340, now seen corresponding path program 1 times [2021-11-22 14:25:01,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:01,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820147583] [2021-11-22 14:25:01,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:01,374 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:01,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:01,375 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:01,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-22 14:25:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:01,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:25:01,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:01,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:01,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:02,275 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:02,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820147583] [2021-11-22 14:25:02,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820147583] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:02,275 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:02,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 14:25:02,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908129444] [2021-11-22 14:25:02,275 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:02,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:25:02,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:02,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:25:02,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:25:02,277 INFO L87 Difference]: Start difference. First operand 2656 states and 3793 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2021-11-22 14:25:02,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:02,497 INFO L93 Difference]: Finished difference Result 2667 states and 3642 transitions. [2021-11-22 14:25:02,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:25:02,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) Word has length 50 [2021-11-22 14:25:02,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:02,509 INFO L225 Difference]: With dead ends: 2667 [2021-11-22 14:25:02,509 INFO L226 Difference]: Without dead ends: 2667 [2021-11-22 14:25:02,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:25:02,510 INFO L933 BasicCegarLoop]: 1626 mSDtfsCounter, 279 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3040 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:02,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 3040 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:25:02,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2021-11-22 14:25:02,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2472. [2021-11-22 14:25:02,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 1791 states have (on average 1.9195979899497488) internal successors, (3438), 2471 states have internal predecessors, (3438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3438 transitions. [2021-11-22 14:25:02,558 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3438 transitions. Word has length 50 [2021-11-22 14:25:02,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:02,559 INFO L470 AbstractCegarLoop]: Abstraction has 2472 states and 3438 transitions. [2021-11-22 14:25:02,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2021-11-22 14:25:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3438 transitions. [2021-11-22 14:25:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 14:25:02,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:02,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:02,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:02,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:02,772 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:02,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:02,773 INFO L85 PathProgramCache]: Analyzing trace with hash -839399161, now seen corresponding path program 1 times [2021-11-22 14:25:02,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:02,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133543544] [2021-11-22 14:25:02,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:02,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:02,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:02,775 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:02,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-22 14:25:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:03,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 14:25:03,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:03,099 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 [2021-11-22 14:25:03,105 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 [2021-11-22 14:25:03,669 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 14:25:03,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-22 14:25:03,676 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-22 14:25:03,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-11-22 14:25:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:03,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:09,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:09,380 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:09,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133543544] [2021-11-22 14:25:09,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133543544] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:09,381 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:09,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 14:25:09,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416642477] [2021-11-22 14:25:09,381 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:09,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:25:09,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:09,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:25:09,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-22 14:25:09,383 INFO L87 Difference]: Start difference. First operand 2472 states and 3438 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:15,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:15,930 INFO L93 Difference]: Finished difference Result 3490 states and 4621 transitions. [2021-11-22 14:25:15,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:25:15,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-22 14:25:15,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:15,939 INFO L225 Difference]: With dead ends: 3490 [2021-11-22 14:25:15,939 INFO L226 Difference]: Without dead ends: 3490 [2021-11-22 14:25:15,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-22 14:25:15,940 INFO L933 BasicCegarLoop]: 1165 mSDtfsCounter, 2209 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2322 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:15,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2209 Valid, 2950 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1372 Invalid, 0 Unknown, 2322 Unchecked, 6.5s Time] [2021-11-22 14:25:15,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3490 states. [2021-11-22 14:25:16,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3490 to 2442. [2021-11-22 14:25:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 1793 states have (on average 1.882877858337981) internal successors, (3376), 2441 states have internal predecessors, (3376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3376 transitions. [2021-11-22 14:25:16,033 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3376 transitions. Word has length 53 [2021-11-22 14:25:16,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:16,034 INFO L470 AbstractCegarLoop]: Abstraction has 2442 states and 3376 transitions. [2021-11-22 14:25:16,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3376 transitions. [2021-11-22 14:25:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-22 14:25:16,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:16,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:16,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:16,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:16,250 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:16,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:16,250 INFO L85 PathProgramCache]: Analyzing trace with hash 791264744, now seen corresponding path program 1 times [2021-11-22 14:25:16,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:16,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416167625] [2021-11-22 14:25:16,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:16,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:16,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:16,252 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:16,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-22 14:25:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:16,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:25:16,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:16,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:16,742 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 8 treesize of output 6 [2021-11-22 14:25:17,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:17,000 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:17,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416167625] [2021-11-22 14:25:17,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416167625] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:17,001 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:17,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 14:25:17,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87439374] [2021-11-22 14:25:17,001 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:17,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:25:17,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:17,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:25:17,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:25:17,003 INFO L87 Difference]: Start difference. First operand 2442 states and 3376 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:19,469 INFO L93 Difference]: Finished difference Result 2440 states and 3372 transitions. [2021-11-22 14:25:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:25:19,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-22 14:25:19,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:19,474 INFO L225 Difference]: With dead ends: 2440 [2021-11-22 14:25:19,474 INFO L226 Difference]: Without dead ends: 2440 [2021-11-22 14:25:19,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:25:19,475 INFO L933 BasicCegarLoop]: 894 mSDtfsCounter, 2558 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:19,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2558 Valid, 1118 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-22 14:25:19,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2021-11-22 14:25:19,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2021-11-22 14:25:19,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 1793 states have (on average 1.8806469604015617) internal successors, (3372), 2439 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3372 transitions. [2021-11-22 14:25:19,509 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3372 transitions. Word has length 55 [2021-11-22 14:25:19,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:19,509 INFO L470 AbstractCegarLoop]: Abstraction has 2440 states and 3372 transitions. [2021-11-22 14:25:19,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3372 transitions. [2021-11-22 14:25:19,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 14:25:19,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:19,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:19,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:19,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:19,724 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:19,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:19,724 INFO L85 PathProgramCache]: Analyzing trace with hash -416260760, now seen corresponding path program 1 times [2021-11-22 14:25:19,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:19,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144370257] [2021-11-22 14:25:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:19,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:19,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:19,725 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:19,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-22 14:25:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:19,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:25:19,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:20,042 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 [2021-11-22 14:25:20,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 18 [2021-11-22 14:25:20,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 13 [2021-11-22 14:25:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:20,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:20,252 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:20,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144370257] [2021-11-22 14:25:20,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144370257] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:20,253 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:20,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-22 14:25:20,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581096478] [2021-11-22 14:25:20,253 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:20,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:25:20,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:20,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:25:20,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:25:20,255 INFO L87 Difference]: Start difference. First operand 2440 states and 3372 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 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) [2021-11-22 14:25:27,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:27,199 INFO L93 Difference]: Finished difference Result 3615 states and 4861 transitions. [2021-11-22 14:25:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 14:25:27,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 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) Word has length 59 [2021-11-22 14:25:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:27,203 INFO L225 Difference]: With dead ends: 3615 [2021-11-22 14:25:27,204 INFO L226 Difference]: Without dead ends: 3615 [2021-11-22 14:25:27,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-22 14:25:27,205 INFO L933 BasicCegarLoop]: 948 mSDtfsCounter, 1371 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 3425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:27,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1371 Valid, 4004 Invalid, 3425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-11-22 14:25:27,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3615 states. [2021-11-22 14:25:27,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3615 to 2439. [2021-11-22 14:25:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 1793 states have (on average 1.879531511433352) internal successors, (3370), 2438 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3370 transitions. [2021-11-22 14:25:27,233 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3370 transitions. Word has length 59 [2021-11-22 14:25:27,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:27,233 INFO L470 AbstractCegarLoop]: Abstraction has 2439 states and 3370 transitions. [2021-11-22 14:25:27,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 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) [2021-11-22 14:25:27,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3370 transitions. [2021-11-22 14:25:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 14:25:27,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:27,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:27,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:27,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:27,437 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:27,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:27,437 INFO L85 PathProgramCache]: Analyzing trace with hash -19181353, now seen corresponding path program 1 times [2021-11-22 14:25:27,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:27,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166769422] [2021-11-22 14:25:27,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:27,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:27,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:27,439 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:27,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-22 14:25:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:27,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 14:25:27,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:27,725 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 [2021-11-22 14:25:27,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-22 14:25:27,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 15 [2021-11-22 14:25:27,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 39 treesize of output 27 [2021-11-22 14:25:27,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 12 [2021-11-22 14:25:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:27,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:28,298 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:28,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166769422] [2021-11-22 14:25:28,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166769422] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:28,299 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:28,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-22 14:25:28,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401819329] [2021-11-22 14:25:28,299 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:28,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:25:28,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:28,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:25:28,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:25:28,300 INFO L87 Difference]: Start difference. First operand 2439 states and 3370 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:55,636 INFO L93 Difference]: Finished difference Result 3161 states and 4116 transitions. [2021-11-22 14:25:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 14:25:55,638 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-22 14:25:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:55,643 INFO L225 Difference]: With dead ends: 3161 [2021-11-22 14:25:55,643 INFO L226 Difference]: Without dead ends: 3161 [2021-11-22 14:25:55,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-22 14:25:55,644 INFO L933 BasicCegarLoop]: 1338 mSDtfsCounter, 1373 mSDsluCounter, 6470 mSDsCounter, 0 mSdLazyCounter, 6405 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 7808 SdHoareTripleChecker+Invalid, 6422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 6405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:55,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1373 Valid, 7808 Invalid, 6422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 6405 Invalid, 0 Unknown, 0 Unchecked, 27.0s Time] [2021-11-22 14:25:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-11-22 14:25:55,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 2438. [2021-11-22 14:25:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 1793 states have (on average 1.8784160624651423) internal successors, (3368), 2437 states have internal predecessors, (3368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:55,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3368 transitions. [2021-11-22 14:25:55,684 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3368 transitions. Word has length 60 [2021-11-22 14:25:55,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:55,684 INFO L470 AbstractCegarLoop]: Abstraction has 2438 states and 3368 transitions. [2021-11-22 14:25:55,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:55,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3368 transitions. [2021-11-22 14:25:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-22 14:25:55,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:55,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:55,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-22 14:25:55,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:55,899 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:55,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1927168386, now seen corresponding path program 1 times [2021-11-22 14:25:55,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:55,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084256810] [2021-11-22 14:25:55,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:55,901 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:55,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:55,902 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:55,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-22 14:25:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:56,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 14:25:56,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:56,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:56,333 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:56,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084256810] [2021-11-22 14:25:56,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084256810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:25:56,334 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:25:56,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 14:25:56,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797125472] [2021-11-22 14:25:56,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:25:56,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:25:56,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:56,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:25:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:25:56,336 INFO L87 Difference]: Start difference. First operand 2438 states and 3368 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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) [2021-11-22 14:25:56,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:56,638 INFO L93 Difference]: Finished difference Result 4393 states and 5989 transitions. [2021-11-22 14:25:56,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 14:25:56,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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 64 [2021-11-22 14:25:56,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:56,659 INFO L225 Difference]: With dead ends: 4393 [2021-11-22 14:25:56,659 INFO L226 Difference]: Without dead ends: 4393 [2021-11-22 14:25:56,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-22 14:25:56,660 INFO L933 BasicCegarLoop]: 1984 mSDtfsCounter, 1500 mSDsluCounter, 6715 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 8699 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:56,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 8699 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:25:56,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2021-11-22 14:25:56,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 2450. [2021-11-22 14:25:56,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 1805 states have (on average 1.8725761772853187) internal successors, (3380), 2449 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:56,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3380 transitions. [2021-11-22 14:25:56,705 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3380 transitions. Word has length 64 [2021-11-22 14:25:56,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:56,705 INFO L470 AbstractCegarLoop]: Abstraction has 2450 states and 3380 transitions. [2021-11-22 14:25:56,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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) [2021-11-22 14:25:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3380 transitions. [2021-11-22 14:25:56,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 14:25:56,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:56,707 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:56,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:56,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:56,920 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:56,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:56,921 INFO L85 PathProgramCache]: Analyzing trace with hash -938951394, now seen corresponding path program 1 times [2021-11-22 14:25:56,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:56,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294249856] [2021-11-22 14:25:56,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:25:56,921 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:56,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:56,922 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:56,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-22 14:25:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:25:57,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:25:57,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:57,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:57,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:57,491 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:57,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294249856] [2021-11-22 14:25:57,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294249856] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:25:57,491 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 14:25:57,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-22 14:25:57,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919134612] [2021-11-22 14:25:57,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 14:25:57,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 14:25:57,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:57,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 14:25:57,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:25:57,493 INFO L87 Difference]: Start difference. First operand 2450 states and 3380 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 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) [2021-11-22 14:25:58,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:25:58,183 INFO L93 Difference]: Finished difference Result 3650 states and 4889 transitions. [2021-11-22 14:25:58,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 14:25:58,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 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 66 [2021-11-22 14:25:58,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:25:58,191 INFO L225 Difference]: With dead ends: 3650 [2021-11-22 14:25:58,191 INFO L226 Difference]: Without dead ends: 3650 [2021-11-22 14:25:58,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2021-11-22 14:25:58,192 INFO L933 BasicCegarLoop]: 1561 mSDtfsCounter, 1076 mSDsluCounter, 7662 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 9223 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:25:58,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 9223 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 14:25:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2021-11-22 14:25:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 2474. [2021-11-22 14:25:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 1829 states have (on average 1.8611262985237835) internal successors, (3404), 2473 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:25:58,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3404 transitions. [2021-11-22 14:25:58,235 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3404 transitions. Word has length 66 [2021-11-22 14:25:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:25:58,236 INFO L470 AbstractCegarLoop]: Abstraction has 2474 states and 3404 transitions. [2021-11-22 14:25:58,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 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) [2021-11-22 14:25:58,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3404 transitions. [2021-11-22 14:25:58,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-22 14:25:58,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:25:58,237 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:25:58,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-22 14:25:58,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:25:58,450 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:25:58,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:25:58,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1093747294, now seen corresponding path program 2 times [2021-11-22 14:25:58,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:25:58,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000748892] [2021-11-22 14:25:58,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 14:25:58,451 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:25:58,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:25:58,452 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:25:58,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-22 14:25:58,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 14:25:58,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:25:58,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 14:25:58,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:25:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:59,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:25:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:25:59,886 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:25:59,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000748892] [2021-11-22 14:25:59,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000748892] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:25:59,886 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 14:25:59,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-22 14:25:59,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235768826] [2021-11-22 14:25:59,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 14:25:59,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-22 14:25:59,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:25:59,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-22 14:25:59,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-22 14:25:59,888 INFO L87 Difference]: Start difference. First operand 2474 states and 3404 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 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) [2021-11-22 14:26:07,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:26:07,999 INFO L93 Difference]: Finished difference Result 10557 states and 14377 transitions. [2021-11-22 14:26:08,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 14:26:08,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 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) Word has length 70 [2021-11-22 14:26:08,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:26:08,012 INFO L225 Difference]: With dead ends: 10557 [2021-11-22 14:26:08,013 INFO L226 Difference]: Without dead ends: 10557 [2021-11-22 14:26:08,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=454, Invalid=952, Unknown=0, NotChecked=0, Total=1406 [2021-11-22 14:26:08,014 INFO L933 BasicCegarLoop]: 5702 mSDtfsCounter, 18457 mSDsluCounter, 32249 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18457 SdHoareTripleChecker+Valid, 37951 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:26:08,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18457 Valid, 37951 Invalid, 955 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [246 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-22 14:26:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2021-11-22 14:26:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 2550. [2021-11-22 14:26:08,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 1905 states have (on average 1.8456692913385826) internal successors, (3516), 2549 states have internal predecessors, (3516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:26:08,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3516 transitions. [2021-11-22 14:26:08,119 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3516 transitions. Word has length 70 [2021-11-22 14:26:08,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:26:08,119 INFO L470 AbstractCegarLoop]: Abstraction has 2550 states and 3516 transitions. [2021-11-22 14:26:08,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 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) [2021-11-22 14:26:08,120 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3516 transitions. [2021-11-22 14:26:08,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-22 14:26:08,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:26:08,125 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:26:08,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-22 14:26:08,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:26:08,343 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:26:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:26:08,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1408996130, now seen corresponding path program 3 times [2021-11-22 14:26:08,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:26:08,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412042055] [2021-11-22 14:26:08,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 14:26:08,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:26:08,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:26:08,347 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:26:08,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-22 14:26:09,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-22 14:26:09,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:26:09,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 14:26:09,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:26:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:26:09,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:26:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:26:11,360 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:26:11,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412042055] [2021-11-22 14:26:11,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412042055] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:26:11,360 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 14:26:11,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-22 14:26:11,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896136792] [2021-11-22 14:26:11,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 14:26:11,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-22 14:26:11,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:26:11,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-22 14:26:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-22 14:26:11,363 INFO L87 Difference]: Start difference. First operand 2550 states and 3516 transitions. Second operand has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:26:33,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:26:33,562 INFO L93 Difference]: Finished difference Result 28205 states and 39025 transitions. [2021-11-22 14:26:33,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 14:26:33,564 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 78 [2021-11-22 14:26:33,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:26:33,602 INFO L225 Difference]: With dead ends: 28205 [2021-11-22 14:26:33,603 INFO L226 Difference]: Without dead ends: 28205 [2021-11-22 14:26:33,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1644, Invalid=4208, Unknown=0, NotChecked=0, Total=5852 [2021-11-22 14:26:33,606 INFO L933 BasicCegarLoop]: 16838 mSDtfsCounter, 48402 mSDsluCounter, 234128 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48402 SdHoareTripleChecker+Valid, 250966 SdHoareTripleChecker+Invalid, 3715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-22 14:26:33,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48402 Valid, 250966 Invalid, 3715 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [600 Valid, 3115 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2021-11-22 14:26:33,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28205 states. [2021-11-22 14:26:33,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28205 to 2678. [2021-11-22 14:26:33,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2678 states, 2033 states have (on average 1.8199704869650764) internal successors, (3700), 2677 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:26:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 3700 transitions. [2021-11-22 14:26:33,881 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 3700 transitions. Word has length 78 [2021-11-22 14:26:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:26:33,881 INFO L470 AbstractCegarLoop]: Abstraction has 2678 states and 3700 transitions. [2021-11-22 14:26:33,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:26:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 3700 transitions. [2021-11-22 14:26:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 14:26:33,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:26:33,883 INFO L514 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:26:33,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-22 14:26:34,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:26:34,084 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:26:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:26:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2005712418, now seen corresponding path program 4 times [2021-11-22 14:26:34,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:26:34,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72744377] [2021-11-22 14:26:34,085 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 14:26:34,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:26:34,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:26:34,092 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:26:34,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-22 14:26:34,462 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 14:26:34,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:26:34,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-22 14:26:34,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:26:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:26:36,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:26:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:26:39,404 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:26:39,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72744377] [2021-11-22 14:26:39,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72744377] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:26:39,404 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 14:26:39,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-22 14:26:39,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85208232] [2021-11-22 14:26:39,404 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 14:26:39,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-22 14:26:39,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:26:39,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-22 14:26:39,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-22 14:26:39,409 INFO L87 Difference]: Start difference. First operand 2678 states and 3700 transitions. Second operand has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:29:14,187 INFO L93 Difference]: Finished difference Result 3974 states and 5265 transitions. [2021-11-22 14:29:14,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-22 14:29:14,188 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 0 states have call successors, (0), 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 94 [2021-11-22 14:29:14,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:29:14,191 INFO L225 Difference]: With dead ends: 3974 [2021-11-22 14:29:14,191 INFO L226 Difference]: Without dead ends: 3974 [2021-11-22 14:29:14,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3304 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=3577, Invalid=8413, Unknown=0, NotChecked=0, Total=11990 [2021-11-22 14:29:14,195 INFO L933 BasicCegarLoop]: 1561 mSDtfsCounter, 1076 mSDsluCounter, 52310 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 1714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 53871 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1714 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:29:14,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 53871 Invalid, 4343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1714 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 126.0s Time] [2021-11-22 14:29:14,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2021-11-22 14:29:14,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 2798. [2021-11-22 14:29:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2153 states have (on average 1.755689735253135) internal successors, (3780), 2797 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3780 transitions. [2021-11-22 14:29:14,242 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3780 transitions. Word has length 94 [2021-11-22 14:29:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:29:14,242 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 3780 transitions. [2021-11-22 14:29:14,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:29:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3780 transitions. [2021-11-22 14:29:14,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 14:29:14,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:29:14,244 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:29:14,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-22 14:29:14,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:29:14,470 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:29:14,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:29:14,471 INFO L85 PathProgramCache]: Analyzing trace with hash -12810178, now seen corresponding path program 5 times [2021-11-22 14:29:14,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:29:14,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265598865] [2021-11-22 14:29:14,472 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 14:29:14,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:29:14,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:29:14,474 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:29:14,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-22 14:29:15,644 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-22 14:29:15,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 14:29:15,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-22 14:29:15,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:29:15,689 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 [2021-11-22 14:29:15,887 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-22 14:29:15,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 26 [2021-11-22 14:29:15,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 22 [2021-11-22 14:29:16,260 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 14:29:16,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 35 [2021-11-22 14:29:16,470 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:16,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:17,409 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:17,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:29:19,426 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:19,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:21,433 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:21,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:22,179 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:22,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:29:24,030 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:24,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 14:29:24,160 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:24,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:25,263 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:25,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 14:29:25,412 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:25,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:29:26,070 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:26,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:26,219 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:26,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:28,227 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:28,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:29:30,014 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:30,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:30,136 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:30,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:30,269 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:30,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:29:31,841 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:31,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 14:29:33,215 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:33,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:29:33,372 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:33,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:33,546 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:33,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:34,912 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:34,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:29:39,936 INFO L354 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2021-11-22 14:29:39,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 54 [2021-11-22 14:29:43,219 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:43,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:29:43,349 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:43,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:46,753 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:46,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:47,818 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:47,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 14:29:48,860 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:48,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:49,009 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:49,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:50,062 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:50,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 14:29:50,250 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:50,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 14:29:51,370 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:51,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:52,671 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:52,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 14:29:55,447 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:55,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:55,599 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:55,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:29:58,313 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:58,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 14:29:58,450 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:29:58,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:30:00,033 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:30:00,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 14:30:02,620 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:30:02,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:30:03,471 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:30:03,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:30:04,423 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:30:04,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:30:04,587 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:30:04,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 14:30:04,719 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:30:04,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2021-11-22 14:30:05,743 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:30:05,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 47 [2021-11-22 14:30:05,870 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:30:05,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 47 [2021-11-22 14:30:06,099 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 14:30:06,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 33 [2021-11-22 14:30:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-22 14:30:06,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:30:20,316 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_190| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_190| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))))) is different from false [2021-11-22 14:30:22,337 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_190| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_192| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_192| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_190| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) (_ bv1 1)))) is different from false [2021-11-22 14:30:57,946 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_206| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_186| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_206| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_186| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) (_ bv1 1)))) is different from false [2021-11-22 14:32:49,069 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_238| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_186| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_238| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_186| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) (_ bv1 1)))) is different from false [2021-11-22 14:33:06,546 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_246| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_246| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))) (_ bv1 1)))) is different from false [2021-11-22 14:33:41,035 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_256| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_256| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) (_ bv1 1)))) is different from false [2021-11-22 14:34:08,880 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_264| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1_264| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))) (_ bv1 1)))) is different from false [2021-11-22 14:34:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 196 proven. 37 refuted. 249 times theorem prover too weak. 221 trivial. 287 not checked. [2021-11-22 14:34:48,156 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:34:48,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265598865] [2021-11-22 14:34:48,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265598865] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 14:34:48,157 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 14:34:48,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 19] total 27 [2021-11-22 14:34:48,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702078661] [2021-11-22 14:34:48,158 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 14:34:48,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-22 14:34:48,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:34:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-22 14:34:48,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=304, Unknown=37, NotChecked=308, Total=756 [2021-11-22 14:34:48,160 INFO L87 Difference]: Start difference. First operand 2798 states and 3780 transitions. Second operand has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:09,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:35:09,840 INFO L93 Difference]: Finished difference Result 3223 states and 4299 transitions. [2021-11-22 14:35:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 14:35:09,841 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 0 states have call successors, (0), 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 108 [2021-11-22 14:35:09,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:35:09,844 INFO L225 Difference]: With dead ends: 3223 [2021-11-22 14:35:09,844 INFO L226 Difference]: Without dead ends: 3223 [2021-11-22 14:35:09,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 115 SyntacticMatches, 76 SemanticMatches, 29 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 291.7s TimeCoverageRelationStatistics Valid=149, Invalid=394, Unknown=37, NotChecked=350, Total=930 [2021-11-22 14:35:09,845 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 1241 mSDsluCounter, 5824 mSDsCounter, 0 mSdLazyCounter, 4854 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 6695 SdHoareTripleChecker+Invalid, 15568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10698 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-22 14:35:09,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1241 Valid, 6695 Invalid, 15568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4854 Invalid, 0 Unknown, 10698 Unchecked, 11.7s Time] [2021-11-22 14:35:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2021-11-22 14:35:09,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 2797. [2021-11-22 14:35:09,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2153 states have (on average 1.7547607988852763) internal successors, (3778), 2796 states have internal predecessors, (3778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3778 transitions. [2021-11-22 14:35:09,892 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3778 transitions. Word has length 108 [2021-11-22 14:35:09,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:35:09,893 INFO L470 AbstractCegarLoop]: Abstraction has 2797 states and 3778 transitions. [2021-11-22 14:35:09,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:35:09,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3778 transitions. [2021-11-22 14:35:09,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 14:35:09,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:35:09,895 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:35:09,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-22 14:35:10,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:35:10,109 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 834 more)] === [2021-11-22 14:35:10,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:35:10,110 INFO L85 PathProgramCache]: Analyzing trace with hash -12810177, now seen corresponding path program 1 times [2021-11-22 14:35:10,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:35:10,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290255466] [2021-11-22 14:35:10,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:35:10,111 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:35:10,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:35:10,113 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:35:10,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec87016e-c5e9-4e06-9432-f2daf67ef76f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-22 14:35:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:35:10,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-22 14:35:10,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:35:10,766 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 [2021-11-22 14:35:10,957 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 [2021-11-22 14:35:10,976 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 14:35:10,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2021-11-22 14:35:11,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 19 [2021-11-22 14:35:11,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-22 14:35:11,354 INFO L354 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2021-11-22 14:35:11,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 67 [2021-11-22 14:35:11,397 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 14:35:11,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 51 [2021-11-22 14:35:12,455 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:12,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:13,189 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:13,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:16,014 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:16,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:16,081 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:16,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:18,314 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:18,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:20,659 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:20,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:23,509 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:23,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:25,795 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:25,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:25,977 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:25,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:26,035 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:26,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:26,236 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:26,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:26,299 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:26,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:27,737 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:27,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:29,628 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:29,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:30,718 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:30,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:31,441 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:31,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:31,628 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:31,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:31,689 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:31,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:31,880 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:31,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:31,944 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:31,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:32,145 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:32,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:32,203 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:32,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:35,087 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:35,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:35,176 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:35,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:35,422 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:35,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:36,319 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:36,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:36,506 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:36,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:38,399 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:38,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:40,259 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:40,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:40,325 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:40,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:40,515 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:40,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:43,951 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:43,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:44,178 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:44,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:44,957 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:44,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:45,144 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:45,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:47,776 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:47,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:49,629 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:49,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:53,000 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:53,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:57,432 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:57,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:57,503 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:57,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:35:57,680 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:35:57,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:35:59,943 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:35:59,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:00,116 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:00,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:00,171 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:00,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:02,198 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:02,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:02,266 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:02,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:04,519 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:04,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:04,583 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:04,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:06,616 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:06,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:06,681 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:06,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:08,504 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:08,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:11,943 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:11,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:12,103 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:12,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:13,906 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:13,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:14,088 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:14,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:16,220 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:16,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:16,405 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:16,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:17,249 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:17,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:18,291 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:18,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:18,348 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:18,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:18,528 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:18,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:20,181 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:20,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:20,365 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:20,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:22,050 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:22,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:22,235 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:22,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:24,454 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:24,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:26,113 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:26,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:28,607 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:28,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:30,261 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:30,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:32,212 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:32,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:32,388 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:32,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:32,451 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:32,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:33,917 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:33,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:33,976 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:33,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:37,487 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:37,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:39,529 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:39,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:39,735 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:39,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:39,787 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:39,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:43,290 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:43,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:43,350 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:43,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:43,566 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:43,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:45,605 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:45,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:45,795 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 14:36:45,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 14:36:45,858 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:45,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 14:36:47,165 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 14:36:47,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 78 [2021-11-22 14:36:48,292 INFO L354 Elim1Store]: treesize reduction 104, result has 19.4 percent of original size [2021-11-22 14:36:48,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 101 [2021-11-22 14:36:48,714 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 14:36:48,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 62 [2021-11-22 14:36:48,725 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 14:36:48,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 26 [2021-11-22 14:36:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-22 14:36:48,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:37:17,105 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_10 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_10 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse0 (_ bv16 32)) (bvadd .cse0 (_ bv20 32))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32)) (v_subst_9 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_9 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 14:37:38,385 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_22 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_22 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_21 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr362#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_21 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false