./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G --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 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:07:33,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:07:33,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:07:33,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:07:33,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:07:33,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:07:33,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:07:33,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:07:33,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:07:33,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:07:33,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:07:33,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:07:33,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:07:33,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:07:33,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:07:33,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:07:33,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:07:33,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:07:33,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:07:33,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:07:33,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:07:33,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:07:33,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:07:33,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:07:33,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:07:33,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:07:33,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:07:33,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:07:33,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:07:33,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:07:33,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:07:33,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:07:33,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:07:33,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:07:33,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:07:33,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:07:33,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:07:33,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:07:33,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:07:33,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:07:33,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:07:33,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-23 14:07:33,329 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:07:33,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:07:33,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:07:33,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:07:33,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:07:33,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:07:33,333 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:07:33,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:07:33,334 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:07:33,334 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:07:33,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:07:33,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:07:33,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:07:33,336 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 14:07:33,336 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 14:07:33,336 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 14:07:33,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:07:33,337 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 14:07:33,338 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:07:33,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:07:33,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:07:33,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:07:33,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:07:33,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:07:33,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:07:33,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:07:33,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:07:33,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:07:33,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:07:33,341 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2021-11-23 14:07:33,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:07:33,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:07:33,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:07:33,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:07:33,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:07:33,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2021-11-23 14:07:33,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data/11b495bcf/ebdf44581b9b438bbc7830faf2584003/FLAG7bce8ea36 [2021-11-23 14:07:34,596 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:07:34,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2021-11-23 14:07:34,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data/11b495bcf/ebdf44581b9b438bbc7830faf2584003/FLAG7bce8ea36 [2021-11-23 14:07:34,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data/11b495bcf/ebdf44581b9b438bbc7830faf2584003 [2021-11-23 14:07:34,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:07:34,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:07:34,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:07:34,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:07:34,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:07:34,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404b172e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34, skipping insertion in model container [2021-11-23 14:07:34,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:07:34,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:07:35,610 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2021-11-23 14:07:35,843 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2021-11-23 14:07:35,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:07:35,900 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) [2021-11-23 14:07:35,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58308fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:35, skipping insertion in model container [2021-11-23 14:07:35,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:07:35,903 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-23 14:07:35,906 INFO L158 Benchmark]: Toolchain (without parser) took 1123.76ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 49.7MB in the beginning and 96.6MB in the end (delta: -46.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-11-23 14:07:35,908 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory was 68.4MB in the beginning and 68.4MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:07:35,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1120.34ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 49.5MB in the beginning and 96.6MB in the end (delta: -47.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-11-23 14:07:35,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory was 68.4MB in the beginning and 68.4MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1120.34ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 49.5MB in the beginning and 96.6MB in the end (delta: -47.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G --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 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:07:38,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:07:38,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:07:38,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:07:38,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:07:38,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:07:38,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:07:38,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:07:38,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:07:38,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:07:38,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:07:38,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:07:38,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:07:38,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:07:38,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:07:38,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:07:38,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:07:38,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:07:38,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:07:38,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:07:38,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:07:38,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:07:38,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:07:38,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:07:38,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:07:38,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:07:38,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:07:39,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:07:39,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:07:39,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:07:39,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:07:39,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:07:39,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:07:39,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:07:39,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:07:39,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:07:39,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:07:39,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:07:39,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:07:39,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:07:39,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:07:39,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-23 14:07:39,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:07:39,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:07:39,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:07:39,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:07:39,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:07:39,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:07:39,098 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:07:39,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:07:39,099 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:07:39,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:07:39,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:07:39,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:07:39,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:07:39,102 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 14:07:39,102 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 14:07:39,102 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 14:07:39,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:07:39,103 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 14:07:39,103 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 14:07:39,104 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 14:07:39,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:07:39,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:07:39,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:07:39,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:07:39,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:07:39,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:07:39,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:07:39,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:07:39,107 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 14:07:39,108 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 14:07:39,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:07:39,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 14:07:39,109 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2021-11-23 14:07:39,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:07:39,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:07:39,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:07:39,660 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:07:39,661 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:07:39,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2021-11-23 14:07:39,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data/767744e6e/bb3bfa76f5d14c78bf125f3086b4783c/FLAG8db10874c [2021-11-23 14:07:40,598 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:07:40,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2021-11-23 14:07:40,637 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data/767744e6e/bb3bfa76f5d14c78bf125f3086b4783c/FLAG8db10874c [2021-11-23 14:07:40,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/data/767744e6e/bb3bfa76f5d14c78bf125f3086b4783c [2021-11-23 14:07:40,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:07:40,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:07:40,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:07:40,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:07:40,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:07:40,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:40" (1/1) ... [2021-11-23 14:07:40,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157feed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:40, skipping insertion in model container [2021-11-23 14:07:40,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:40" (1/1) ... [2021-11-23 14:07:40,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:07:40,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:07:41,417 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2021-11-23 14:07:41,667 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2021-11-23 14:07:41,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:07:41,745 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 14:07:41,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:07:41,815 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2021-11-23 14:07:41,917 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2021-11-23 14:07:41,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:07:41,952 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:07:41,988 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[33021,33034] [2021-11-23 14:07:42,055 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_9246bb96-2fad-4556-bd02-37f29c68a4d1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i[44590,44603] [2021-11-23 14:07:42,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:07:42,144 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:07:42,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42 WrapperNode [2021-11-23 14:07:42,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:07:42,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:07:42,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:07:42,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:07:42,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,327 INFO L137 Inliner]: procedures = 180, calls = 336, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 1235 [2021-11-23 14:07:42,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:07:42,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:07:42,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:07:42,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:07:42,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:07:42,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:07:42,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:07:42,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:07:42,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (1/1) ... [2021-11-23 14:07:42,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:07:42,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:42,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:07:42,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:07:42,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 14:07:42,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 14:07:42,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:07:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:07:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:07:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:07:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 14:07:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 14:07:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:07:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 14:07:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 14:07:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:07:42,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:07:43,027 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:07:43,029 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:07:50,031 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:07:50,051 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:07:50,052 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 14:07:50,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:50 BoogieIcfgContainer [2021-11-23 14:07:50,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:07:50,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:07:50,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:07:50,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:07:50,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:07:40" (1/3) ... [2021-11-23 14:07:50,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0ea6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:50, skipping insertion in model container [2021-11-23 14:07:50,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:42" (2/3) ... [2021-11-23 14:07:50,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0ea6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:50, skipping insertion in model container [2021-11-23 14:07:50,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:50" (3/3) ... [2021-11-23 14:07:50,072 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-2.i [2021-11-23 14:07:50,079 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:07:50,079 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 643 error locations. [2021-11-23 14:07:50,136 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:07:50,145 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 [2021-11-23 14:07:50,145 INFO L340 AbstractCegarLoop]: Starting to check reachability of 643 error locations. [2021-11-23 14:07:50,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 1284 states, 640 states have (on average 2.246875) internal successors, (1438), 1283 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:50,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 14:07:50,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:50,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 14:07:50,207 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:07:50,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:50,220 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-23 14:07:50,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:07:50,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958508580] [2021-11-23 14:07:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:50,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:07:50,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:07:50,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:07:50,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 14:07:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:50,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 14:07:50,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:07:50,532 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 [2021-11-23 14:07:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:50,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:07:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:50,568 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:07:50,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958508580] [2021-11-23 14:07:50,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958508580] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:50,569 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:50,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 14:07:50,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016331886] [2021-11-23 14:07:50,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:50,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:07:50,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:07:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:07:50,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:07:50,618 INFO L87 Difference]: Start difference. First operand has 1284 states, 640 states have (on average 2.246875) internal successors, (1438), 1283 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:53,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:53,839 INFO L93 Difference]: Finished difference Result 1456 states and 1537 transitions. [2021-11-23 14:07:53,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:07:53,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-11-23 14:07:53,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:53,872 INFO L225 Difference]: With dead ends: 1456 [2021-11-23 14:07:53,872 INFO L226 Difference]: Without dead ends: 1454 [2021-11-23 14:07:53,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:07:53,878 INFO L933 BasicCegarLoop]: 772 mSDtfsCounter, 1216 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:07:53,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1216 Valid, 922 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-23 14:07:53,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2021-11-23 14:07:54,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1269. [2021-11-23 14:07:54,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 640 states have (on average 2.096875) internal successors, (1342), 1268 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1342 transitions. [2021-11-23 14:07:54,033 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1342 transitions. Word has length 3 [2021-11-23 14:07:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:54,034 INFO L470 AbstractCegarLoop]: Abstraction has 1269 states and 1342 transitions. [2021-11-23 14:07:54,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:54,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1342 transitions. [2021-11-23 14:07:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 14:07:54,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:54,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 14:07:54,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:07:54,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:07:54,253 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:07:54,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:54,255 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-23 14:07:54,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:07:54,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290202233] [2021-11-23 14:07:54,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:54,256 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:07:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:07:54,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:07:54,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 14:07:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:54,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:07:54,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:07:54,468 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 [2021-11-23 14:07:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:54,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:07:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:54,555 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:07:54,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290202233] [2021-11-23 14:07:54,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290202233] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:54,556 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:54,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-23 14:07:54,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018803673] [2021-11-23 14:07:54,557 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:54,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:07:54,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:07:54,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:07:54,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:07:54,561 INFO L87 Difference]: Start difference. First operand 1269 states and 1342 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-11-23 14:08:01,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:01,062 INFO L93 Difference]: Finished difference Result 1968 states and 2090 transitions. [2021-11-23 14:08:01,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:08:01,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 3 [2021-11-23 14:08:01,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:01,077 INFO L225 Difference]: With dead ends: 1968 [2021-11-23 14:08:01,077 INFO L226 Difference]: Without dead ends: 1968 [2021-11-23 14:08:01,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:01,079 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 1627 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:01,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1627 Valid, 1838 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-11-23 14:08:01,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2021-11-23 14:08:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1304. [2021-11-23 14:08:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 684 states have (on average 2.077485380116959) internal successors, (1421), 1303 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1421 transitions. [2021-11-23 14:08:01,167 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1421 transitions. Word has length 3 [2021-11-23 14:08:01,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:01,167 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 1421 transitions. [2021-11-23 14:08:01,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-11-23 14:08:01,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1421 transitions. [2021-11-23 14:08:01,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 14:08:01,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:01,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:01,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:01,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:01,383 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:01,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:01,384 INFO L85 PathProgramCache]: Analyzing trace with hash 62249618, now seen corresponding path program 1 times [2021-11-23 14:08:01,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:01,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081608146] [2021-11-23 14:08:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:01,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:01,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:01,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:01,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 14:08:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:01,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 14:08:01,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:01,545 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 [2021-11-23 14:08:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:01,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:01,584 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:01,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081608146] [2021-11-23 14:08:01,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081608146] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:01,585 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:01,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 14:08:01,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289435512] [2021-11-23 14:08:01,586 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:01,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:08:01,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:01,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:08:01,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:08:01,588 INFO L87 Difference]: Start difference. First operand 1304 states and 1421 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2021-11-23 14:08:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:04,297 INFO L93 Difference]: Finished difference Result 1632 states and 1774 transitions. [2021-11-23 14:08:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 8 [2021-11-23 14:08:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:04,306 INFO L225 Difference]: With dead ends: 1632 [2021-11-23 14:08:04,307 INFO L226 Difference]: Without dead ends: 1632 [2021-11-23 14:08:04,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:08:04,308 INFO L933 BasicCegarLoop]: 1168 mSDtfsCounter, 1027 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:04,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 1506 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-23 14:08:04,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2021-11-23 14:08:04,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1255. [2021-11-23 14:08:04,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 684 states have (on average 2.0014619883040936) internal successors, (1369), 1254 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:04,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1369 transitions. [2021-11-23 14:08:04,343 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1369 transitions. Word has length 8 [2021-11-23 14:08:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:04,344 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1369 transitions. [2021-11-23 14:08:04,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2021-11-23 14:08:04,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1369 transitions. [2021-11-23 14:08:04,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 14:08:04,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:04,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:04,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:04,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:04,560 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:04,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:04,561 INFO L85 PathProgramCache]: Analyzing trace with hash 62249619, now seen corresponding path program 1 times [2021-11-23 14:08:04,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:04,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8601600] [2021-11-23 14:08:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:04,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:04,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:04,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:04,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 14:08:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:04,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:08:04,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:04,775 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 [2021-11-23 14:08:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:04,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:04,921 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:04,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8601600] [2021-11-23 14:08:04,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8601600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:04,922 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:04,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-23 14:08:04,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234459954] [2021-11-23 14:08:04,922 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:04,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:08:04,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:08:04,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:04,924 INFO L87 Difference]: Start difference. First operand 1255 states and 1369 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:11,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:11,622 INFO L93 Difference]: Finished difference Result 1675 states and 1781 transitions. [2021-11-23 14:08:11,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:08:11,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 8 [2021-11-23 14:08:11,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:11,634 INFO L225 Difference]: With dead ends: 1675 [2021-11-23 14:08:11,634 INFO L226 Difference]: Without dead ends: 1675 [2021-11-23 14:08:11,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:11,636 INFO L933 BasicCegarLoop]: 1346 mSDtfsCounter, 758 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:11,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 2395 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-11-23 14:08:11,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2021-11-23 14:08:11,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1245. [2021-11-23 14:08:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 684 states have (on average 1.9824561403508771) internal successors, (1356), 1244 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:11,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1356 transitions. [2021-11-23 14:08:11,677 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1356 transitions. Word has length 8 [2021-11-23 14:08:11,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:11,677 INFO L470 AbstractCegarLoop]: Abstraction has 1245 states and 1356 transitions. [2021-11-23 14:08:11,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1356 transitions. [2021-11-23 14:08:11,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 14:08:11,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:11,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:11,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-23 14:08:11,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:11,892 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:11,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:11,894 INFO L85 PathProgramCache]: Analyzing trace with hash -945574260, now seen corresponding path program 1 times [2021-11-23 14:08:11,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:11,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026677096] [2021-11-23 14:08:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:11,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:11,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:11,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:11,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 14:08:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:12,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 14:08:12,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:12,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:12,289 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:12,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026677096] [2021-11-23 14:08:12,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026677096] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:12,289 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:12,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 14:08:12,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636175178] [2021-11-23 14:08:12,290 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:12,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:08:12,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:12,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:08:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:12,292 INFO L87 Difference]: Start difference. First operand 1245 states and 1356 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:13,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:13,640 INFO L93 Difference]: Finished difference Result 1887 states and 2040 transitions. [2021-11-23 14:08:13,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:08:13,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 [2021-11-23 14:08:13,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:13,656 INFO L225 Difference]: With dead ends: 1887 [2021-11-23 14:08:13,657 INFO L226 Difference]: Without dead ends: 1887 [2021-11-23 14:08:13,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:08:13,659 INFO L933 BasicCegarLoop]: 1403 mSDtfsCounter, 763 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:13,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 3764 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 14:08:13,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2021-11-23 14:08:13,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1485. [2021-11-23 14:08:13,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 924 states have (on average 1.9588744588744589) internal successors, (1810), 1484 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:13,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1810 transitions. [2021-11-23 14:08:13,708 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1810 transitions. Word has length 11 [2021-11-23 14:08:13,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:13,709 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 1810 transitions. [2021-11-23 14:08:13,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:13,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1810 transitions. [2021-11-23 14:08:13,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 14:08:13,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:13,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:13,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:13,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:13,921 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:13,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1258779124, now seen corresponding path program 1 times [2021-11-23 14:08:13,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:13,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111740214] [2021-11-23 14:08:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:13,923 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:13,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:13,924 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:13,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 14:08:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:14,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 14:08:14,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:14,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:14,138 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:14,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111740214] [2021-11-23 14:08:14,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111740214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:14,139 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:14,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 14:08:14,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528939501] [2021-11-23 14:08:14,139 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:14,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:08:14,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:08:14,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:14,141 INFO L87 Difference]: Start difference. First operand 1485 states and 1810 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:14,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:14,190 INFO L93 Difference]: Finished difference Result 1681 states and 1998 transitions. [2021-11-23 14:08:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:14,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2021-11-23 14:08:14,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:14,202 INFO L225 Difference]: With dead ends: 1681 [2021-11-23 14:08:14,203 INFO L226 Difference]: Without dead ends: 1681 [2021-11-23 14:08:14,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:14,207 INFO L933 BasicCegarLoop]: 1227 mSDtfsCounter, 1244 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 2089 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 [2021-11-23 14:08:14,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1244 Valid, 2089 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:14,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2021-11-23 14:08:14,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1425. [2021-11-23 14:08:14,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 888 states have (on average 1.9414414414414414) internal successors, (1724), 1424 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:14,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1724 transitions. [2021-11-23 14:08:14,251 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1724 transitions. Word has length 13 [2021-11-23 14:08:14,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:14,252 INFO L470 AbstractCegarLoop]: Abstraction has 1425 states and 1724 transitions. [2021-11-23 14:08:14,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1724 transitions. [2021-11-23 14:08:14,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 14:08:14,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:14,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:14,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:14,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:14,469 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:14,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:14,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1494013586, now seen corresponding path program 1 times [2021-11-23 14:08:14,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:14,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008700668] [2021-11-23 14:08:14,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:14,471 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:14,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:14,472 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:14,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 14:08:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:14,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:08:14,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:14,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:14,758 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:14,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008700668] [2021-11-23 14:08:14,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008700668] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:14,758 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:14,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-23 14:08:14,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360929869] [2021-11-23 14:08:14,766 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:14,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:08:14,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:08:14,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:08:14,768 INFO L87 Difference]: Start difference. First operand 1425 states and 1724 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:14,873 INFO L93 Difference]: Finished difference Result 1653 states and 1942 transitions. [2021-11-23 14:08:14,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:08:14,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 14:08:14,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:14,883 INFO L225 Difference]: With dead ends: 1653 [2021-11-23 14:08:14,883 INFO L226 Difference]: Without dead ends: 1653 [2021-11-23 14:08:14,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:08:14,885 INFO L933 BasicCegarLoop]: 1182 mSDtfsCounter, 1176 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:14,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 3219 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:08:14,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2021-11-23 14:08:14,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1395. [2021-11-23 14:08:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 872 states have (on average 1.9105504587155964) internal successors, (1666), 1394 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:14,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1666 transitions. [2021-11-23 14:08:14,929 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1666 transitions. Word has length 15 [2021-11-23 14:08:14,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:14,930 INFO L470 AbstractCegarLoop]: Abstraction has 1395 states and 1666 transitions. [2021-11-23 14:08:14,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:14,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1666 transitions. [2021-11-23 14:08:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 14:08:14,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:14,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:14,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:15,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:15,146 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr642ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:15,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash -272214225, now seen corresponding path program 1 times [2021-11-23 14:08:15,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:15,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907898202] [2021-11-23 14:08:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:15,147 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:15,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:15,149 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:15,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 14:08:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:15,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:08:15,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:15,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:08:15,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:08:15,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:08:15,464 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-23 14:08:15,465 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 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-23 14:08:15,542 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-23 14:08:15,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-23 14:08:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:15,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:15,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:15,652 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:15,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907898202] [2021-11-23 14:08:15,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907898202] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:15,652 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:15,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 14:08:15,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295079269] [2021-11-23 14:08:15,652 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:15,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:08:15,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:15,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:08:15,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:08:15,654 INFO L87 Difference]: Start difference. First operand 1395 states and 1666 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:18,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:18,313 INFO L93 Difference]: Finished difference Result 1864 states and 2200 transitions. [2021-11-23 14:08:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:08:18,314 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 14:08:18,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:18,324 INFO L225 Difference]: With dead ends: 1864 [2021-11-23 14:08:18,325 INFO L226 Difference]: Without dead ends: 1864 [2021-11-23 14:08:18,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:08:18,326 INFO L933 BasicCegarLoop]: 1149 mSDtfsCounter, 463 mSDsluCounter, 4364 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:18,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 5513 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-23 14:08:18,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2021-11-23 14:08:18,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1394. [2021-11-23 14:08:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 871 states have (on average 1.9104477611940298) internal successors, (1664), 1393 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1664 transitions. [2021-11-23 14:08:18,368 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1664 transitions. Word has length 16 [2021-11-23 14:08:18,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:18,369 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1664 transitions. [2021-11-23 14:08:18,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1664 transitions. [2021-11-23 14:08:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 14:08:18,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:18,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:18,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-23 14:08:18,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:18,586 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:18,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:18,587 INFO L85 PathProgramCache]: Analyzing trace with hash -520774338, now seen corresponding path program 1 times [2021-11-23 14:08:18,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:18,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384448784] [2021-11-23 14:08:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:18,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:18,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:18,589 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:18,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 14:08:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:18,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 14:08:18,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:18,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:18,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:18,877 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:18,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384448784] [2021-11-23 14:08:18,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384448784] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:18,877 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:18,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-23 14:08:18,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272888355] [2021-11-23 14:08:18,878 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:18,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:08:18,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:18,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:08:18,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:18,879 INFO L87 Difference]: Start difference. First operand 1394 states and 1664 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:18,909 INFO L93 Difference]: Finished difference Result 1334 states and 1578 transitions. [2021-11-23 14:08:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:08:18,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-23 14:08:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:18,915 INFO L225 Difference]: With dead ends: 1334 [2021-11-23 14:08:18,916 INFO L226 Difference]: Without dead ends: 1334 [2021-11-23 14:08:18,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:18,917 INFO L933 BasicCegarLoop]: 1148 mSDtfsCounter, 1143 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:18,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 1176 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:08:18,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2021-11-23 14:08:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2021-11-23 14:08:18,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 835 states have (on average 1.889820359281437) internal successors, (1578), 1333 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1578 transitions. [2021-11-23 14:08:18,960 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1578 transitions. Word has length 18 [2021-11-23 14:08:18,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:18,961 INFO L470 AbstractCegarLoop]: Abstraction has 1334 states and 1578 transitions. [2021-11-23 14:08:18,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1578 transitions. [2021-11-23 14:08:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 14:08:18,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:18,962 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] [2021-11-23 14:08:18,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:19,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:19,177 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:19,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:19,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2047030904, now seen corresponding path program 1 times [2021-11-23 14:08:19,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:19,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926214862] [2021-11-23 14:08:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:19,178 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:19,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:19,179 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:19,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 14:08:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:19,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:08:19,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:19,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:19,458 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:19,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926214862] [2021-11-23 14:08:19,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926214862] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:19,459 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:19,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-23 14:08:19,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322431873] [2021-11-23 14:08:19,460 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:19,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:08:19,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:19,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:08:19,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:08:19,461 INFO L87 Difference]: Start difference. First operand 1334 states and 1578 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:19,553 INFO L93 Difference]: Finished difference Result 1306 states and 1522 transitions. [2021-11-23 14:08:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:08:19,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 20 [2021-11-23 14:08:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:19,563 INFO L225 Difference]: With dead ends: 1306 [2021-11-23 14:08:19,563 INFO L226 Difference]: Without dead ends: 1306 [2021-11-23 14:08:19,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:08:19,565 INFO L933 BasicCegarLoop]: 1103 mSDtfsCounter, 1114 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 2227 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 [2021-11-23 14:08:19,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 2227 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:08:19,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2021-11-23 14:08:19,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1304. [2021-11-23 14:08:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 819 states have (on average 1.855921855921856) internal successors, (1520), 1303 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1520 transitions. [2021-11-23 14:08:19,599 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1520 transitions. Word has length 20 [2021-11-23 14:08:19,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:19,599 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 1520 transitions. [2021-11-23 14:08:19,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:19,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1520 transitions. [2021-11-23 14:08:19,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 14:08:19,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:19,603 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] [2021-11-23 14:08:19,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:19,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:19,822 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:19,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:19,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1406589690, now seen corresponding path program 1 times [2021-11-23 14:08:19,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:19,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888366225] [2021-11-23 14:08:19,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:19,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:19,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:19,828 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:19,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 14:08:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:20,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:08:20,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:20,051 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 [2021-11-23 14:08:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:20,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:20,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:20,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888366225] [2021-11-23 14:08:20,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888366225] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:20,351 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:20,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-23 14:08:20,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724246003] [2021-11-23 14:08:20,351 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:20,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:08:20,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:20,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:08:20,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:20,353 INFO L87 Difference]: Start difference. First operand 1304 states and 1520 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:23,473 INFO L93 Difference]: Finished difference Result 1920 states and 2264 transitions. [2021-11-23 14:08:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:08:23,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-23 14:08:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:23,482 INFO L225 Difference]: With dead ends: 1920 [2021-11-23 14:08:23,483 INFO L226 Difference]: Without dead ends: 1920 [2021-11-23 14:08:23,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:08:23,484 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 1863 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:23,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1863 Valid, 1276 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-23 14:08:23,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2021-11-23 14:08:23,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1300. [2021-11-23 14:08:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 819 states have (on average 1.8461538461538463) internal successors, (1512), 1299 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:23,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1512 transitions. [2021-11-23 14:08:23,518 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1512 transitions. Word has length 34 [2021-11-23 14:08:23,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:23,519 INFO L470 AbstractCegarLoop]: Abstraction has 1300 states and 1512 transitions. [2021-11-23 14:08:23,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1512 transitions. [2021-11-23 14:08:23,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 14:08:23,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:23,521 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] [2021-11-23 14:08:23,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:23,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:23,736 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:23,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:23,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1406589689, now seen corresponding path program 1 times [2021-11-23 14:08:23,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:23,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056468821] [2021-11-23 14:08:23,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:23,738 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:23,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:23,739 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:23,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 14:08:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:23,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 14:08:23,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:23,982 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 [2021-11-23 14:08:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:24,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:24,883 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:24,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056468821] [2021-11-23 14:08:24,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056468821] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:24,883 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:24,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 14:08:24,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475411771] [2021-11-23 14:08:24,883 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:24,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:08:24,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:24,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:08:24,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:08:24,885 INFO L87 Difference]: Start difference. First operand 1300 states and 1512 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:35,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:35,285 INFO L93 Difference]: Finished difference Result 2045 states and 2366 transitions. [2021-11-23 14:08:35,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:08:35,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-23 14:08:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:35,295 INFO L225 Difference]: With dead ends: 2045 [2021-11-23 14:08:35,296 INFO L226 Difference]: Without dead ends: 2045 [2021-11-23 14:08:35,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-23 14:08:35,297 INFO L933 BasicCegarLoop]: 1428 mSDtfsCounter, 2133 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 3173 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:35,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2133 Valid, 3173 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2021-11-23 14:08:35,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2021-11-23 14:08:35,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1296. [2021-11-23 14:08:35,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 819 states have (on average 1.8363858363858363) internal successors, (1504), 1295 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:35,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1504 transitions. [2021-11-23 14:08:35,330 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1504 transitions. Word has length 34 [2021-11-23 14:08:35,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:35,331 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 1504 transitions. [2021-11-23 14:08:35,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:35,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1504 transitions. [2021-11-23 14:08:35,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 14:08:35,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:35,334 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] [2021-11-23 14:08:35,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-23 14:08:35,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:35,548 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:35,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:35,548 INFO L85 PathProgramCache]: Analyzing trace with hash -489765179, now seen corresponding path program 1 times [2021-11-23 14:08:35,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:35,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215163714] [2021-11-23 14:08:35,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:35,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:35,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:35,551 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:35,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 14:08:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:35,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:08:35,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:35,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:35,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:36,077 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:36,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215163714] [2021-11-23 14:08:36,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215163714] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:36,077 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:36,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 14:08:36,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631531352] [2021-11-23 14:08:36,078 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:36,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:08:36,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:36,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:08:36,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:36,082 INFO L87 Difference]: Start difference. First operand 1296 states and 1504 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:36,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:36,171 INFO L93 Difference]: Finished difference Result 1284 states and 1484 transitions. [2021-11-23 14:08:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:08:36,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-23 14:08:36,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:36,180 INFO L225 Difference]: With dead ends: 1284 [2021-11-23 14:08:36,180 INFO L226 Difference]: Without dead ends: 1284 [2021-11-23 14:08:36,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:08:36,181 INFO L933 BasicCegarLoop]: 1097 mSDtfsCounter, 1090 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:36,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2191 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:08:36,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2021-11-23 14:08:36,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1284. [2021-11-23 14:08:36,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 807 states have (on average 1.838909541511772) internal successors, (1484), 1283 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1484 transitions. [2021-11-23 14:08:36,209 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1484 transitions. Word has length 52 [2021-11-23 14:08:36,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:36,210 INFO L470 AbstractCegarLoop]: Abstraction has 1284 states and 1484 transitions. [2021-11-23 14:08:36,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:36,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1484 transitions. [2021-11-23 14:08:36,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 14:08:36,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:36,218 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] [2021-11-23 14:08:36,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:36,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:36,433 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:36,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:36,434 INFO L85 PathProgramCache]: Analyzing trace with hash -531678063, now seen corresponding path program 1 times [2021-11-23 14:08:36,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:36,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057045141] [2021-11-23 14:08:36,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:36,435 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:36,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:36,437 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:36,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 14:08:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:36,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 14:08:36,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:36,899 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 [2021-11-23 14:08:36,906 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 [2021-11-23 14:08:37,772 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 14:08:37,773 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 26 treesize of output 28 [2021-11-23 14:08:37,795 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 14:08:37,796 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 25 treesize of output 21 [2021-11-23 14:08:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:37,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:43,478 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:43,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057045141] [2021-11-23 14:08:43,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057045141] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:43,478 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:43,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 14:08:43,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815787217] [2021-11-23 14:08:43,479 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:43,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:08:43,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:43,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:08:43,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-23 14:08:43,481 INFO L87 Difference]: Start difference. First operand 1284 states and 1484 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:48,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:48,513 INFO L93 Difference]: Finished difference Result 1674 states and 1957 transitions. [2021-11-23 14:08:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:08:48,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-23 14:08:48,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:48,521 INFO L225 Difference]: With dead ends: 1674 [2021-11-23 14:08:48,521 INFO L226 Difference]: Without dead ends: 1674 [2021-11-23 14:08:48,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-23 14:08:48,522 INFO L933 BasicCegarLoop]: 833 mSDtfsCounter, 1619 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1463 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:48,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1619 Valid, 1970 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 780 Invalid, 0 Unknown, 1463 Unchecked, 5.0s Time] [2021-11-23 14:08:48,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2021-11-23 14:08:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1254. [2021-11-23 14:08:48,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 809 states have (on average 1.7972805933250926) internal successors, (1454), 1253 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:48,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1454 transitions. [2021-11-23 14:08:48,546 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1454 transitions. Word has length 60 [2021-11-23 14:08:48,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:48,547 INFO L470 AbstractCegarLoop]: Abstraction has 1254 states and 1454 transitions. [2021-11-23 14:08:48,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:48,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1454 transitions. [2021-11-23 14:08:48,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 14:08:48,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:48,548 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] [2021-11-23 14:08:48,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-23 14:08:48,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:48,763 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:48,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:48,763 INFO L85 PathProgramCache]: Analyzing trace with hash 158497042, now seen corresponding path program 1 times [2021-11-23 14:08:48,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:48,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743268631] [2021-11-23 14:08:48,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:48,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:48,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:48,766 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:48,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-23 14:08:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:49,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:08:49,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:49,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:49,344 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 [2021-11-23 14:08:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:49,654 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:49,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743268631] [2021-11-23 14:08:49,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743268631] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:49,655 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:49,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 14:08:49,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532470653] [2021-11-23 14:08:49,655 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:49,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:08:49,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:08:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:08:49,657 INFO L87 Difference]: Start difference. First operand 1254 states and 1454 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:51,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:51,666 INFO L93 Difference]: Finished difference Result 1252 states and 1452 transitions. [2021-11-23 14:08:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:08:51,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 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 62 [2021-11-23 14:08:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:51,675 INFO L225 Difference]: With dead ends: 1252 [2021-11-23 14:08:51,675 INFO L226 Difference]: Without dead ends: 1252 [2021-11-23 14:08:51,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:08:51,679 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 3080 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3080 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:51,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3080 Valid, 934 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-23 14:08:51,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2021-11-23 14:08:51,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1252. [2021-11-23 14:08:51,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 809 states have (on average 1.7948084054388134) internal successors, (1452), 1251 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:51,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1452 transitions. [2021-11-23 14:08:51,701 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1452 transitions. Word has length 62 [2021-11-23 14:08:51,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:51,701 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 1452 transitions. [2021-11-23 14:08:51,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:51,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1452 transitions. [2021-11-23 14:08:51,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 14:08:51,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:51,703 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, 1, 1] [2021-11-23 14:08:51,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-23 14:08:51,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:51,927 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:51,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:51,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1426362414, now seen corresponding path program 1 times [2021-11-23 14:08:51,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:51,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543853653] [2021-11-23 14:08:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:51,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:51,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:51,929 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:51,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-23 14:08:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:52,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 14:08:52,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:52,294 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 [2021-11-23 14:08:52,312 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 [2021-11-23 14:08:52,358 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 [2021-11-23 14:08:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:52,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:08:52,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:52,560 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:08:52,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543853653] [2021-11-23 14:08:52,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543853653] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:52,560 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:52,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-23 14:08:52,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990373537] [2021-11-23 14:08:52,561 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:52,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:08:52,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:08:52,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:08:52,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:08:52,562 INFO L87 Difference]: Start difference. First operand 1252 states and 1452 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:58,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:58,879 INFO L93 Difference]: Finished difference Result 2066 states and 2403 transitions. [2021-11-23 14:08:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:08:58,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-23 14:08:58,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:58,889 INFO L225 Difference]: With dead ends: 2066 [2021-11-23 14:08:58,889 INFO L226 Difference]: Without dead ends: 2066 [2021-11-23 14:08:58,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-23 14:08:58,891 INFO L933 BasicCegarLoop]: 686 mSDtfsCounter, 981 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:58,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 2943 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-11-23 14:08:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2021-11-23 14:08:58,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 1251. [2021-11-23 14:08:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 809 states have (on average 1.7935723114956736) internal successors, (1451), 1250 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1451 transitions. [2021-11-23 14:08:58,914 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1451 transitions. Word has length 66 [2021-11-23 14:08:58,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:58,915 INFO L470 AbstractCegarLoop]: Abstraction has 1251 states and 1451 transitions. [2021-11-23 14:08:58,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:58,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1451 transitions. [2021-11-23 14:08:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 14:08:58,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:58,916 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, 1, 1, 1] [2021-11-23 14:08:58,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-23 14:08:59,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:08:59,143 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:08:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:59,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1267561538, now seen corresponding path program 1 times [2021-11-23 14:08:59,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:08:59,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407249910] [2021-11-23 14:08:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:59,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:08:59,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:08:59,147 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:08:59,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-23 14:08:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:59,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 14:08:59,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:59,485 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 [2021-11-23 14:08:59,511 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 [2021-11-23 14:08:59,520 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 [2021-11-23 14:08:59,582 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 [2021-11-23 14:08:59,586 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 [2021-11-23 14:08:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:59,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:09:00,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:00,179 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:09:00,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407249910] [2021-11-23 14:09:00,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407249910] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:09:00,179 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:09:00,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-23 14:09:00,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054580498] [2021-11-23 14:09:00,180 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:09:00,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 14:09:00,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:09:00,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 14:09:00,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 14:09:00,181 INFO L87 Difference]: Start difference. First operand 1251 states and 1451 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:19,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:19,379 INFO L93 Difference]: Finished difference Result 1986 states and 2300 transitions. [2021-11-23 14:09:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:09:19,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-23 14:09:19,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:19,389 INFO L225 Difference]: With dead ends: 1986 [2021-11-23 14:09:19,389 INFO L226 Difference]: Without dead ends: 1986 [2021-11-23 14:09:19,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-23 14:09:19,390 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 980 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 3180 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 3194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:19,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 3837 Invalid, 3194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3180 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2021-11-23 14:09:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2021-11-23 14:09:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1250. [2021-11-23 14:09:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 809 states have (on average 1.792336217552534) internal successors, (1450), 1249 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1450 transitions. [2021-11-23 14:09:19,413 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1450 transitions. Word has length 67 [2021-11-23 14:09:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:19,413 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1450 transitions. [2021-11-23 14:09:19,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1450 transitions. [2021-11-23 14:09:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 14:09:19,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:19,414 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:19,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:19,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:09:19,615 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:09:19,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:19,615 INFO L85 PathProgramCache]: Analyzing trace with hash -582276570, now seen corresponding path program 1 times [2021-11-23 14:09:19,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:09:19,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866312839] [2021-11-23 14:09:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:19,616 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:09:19,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:09:19,618 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:09:19,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-23 14:09:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:19,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:09:19,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:20,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:09:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:20,189 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:09:20,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866312839] [2021-11-23 14:09:20,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866312839] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:09:20,189 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:09:20,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 14:09:20,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404162382] [2021-11-23 14:09:20,192 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:09:20,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:09:20,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:09:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:09:20,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:09:20,194 INFO L87 Difference]: Start difference. First operand 1250 states and 1450 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:20,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:20,370 INFO L93 Difference]: Finished difference Result 2345 states and 2705 transitions. [2021-11-23 14:09:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:09:20,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 71 [2021-11-23 14:09:20,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:20,413 INFO L225 Difference]: With dead ends: 2345 [2021-11-23 14:09:20,413 INFO L226 Difference]: Without dead ends: 2345 [2021-11-23 14:09:20,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:09:20,414 INFO L933 BasicCegarLoop]: 1320 mSDtfsCounter, 1096 mSDsluCounter, 4360 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 5680 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:20,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 5680 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:09:20,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2021-11-23 14:09:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1253. [2021-11-23 14:09:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 812 states have (on average 1.7894088669950738) internal successors, (1453), 1252 states have internal predecessors, (1453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:20,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1453 transitions. [2021-11-23 14:09:20,445 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1453 transitions. Word has length 71 [2021-11-23 14:09:20,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:20,446 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 1453 transitions. [2021-11-23 14:09:20,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:20,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1453 transitions. [2021-11-23 14:09:20,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 14:09:20,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:20,447 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:20,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:20,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:09:20,649 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:09:20,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:20,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1283072730, now seen corresponding path program 1 times [2021-11-23 14:09:20,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:09:20,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888394144] [2021-11-23 14:09:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:09:20,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:09:20,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:09:20,652 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:09:20,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-23 14:09:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:09:20,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 14:09:20,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:21,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:09:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:21,364 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:09:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888394144] [2021-11-23 14:09:21,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888394144] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:09:21,365 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:09:21,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-23 14:09:21,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138874891] [2021-11-23 14:09:21,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:09:21,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 14:09:21,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:09:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 14:09:21,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-23 14:09:21,367 INFO L87 Difference]: Start difference. First operand 1253 states and 1453 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:21,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:21,916 INFO L93 Difference]: Finished difference Result 2152 states and 2502 transitions. [2021-11-23 14:09:21,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 14:09:21,917 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-23 14:09:21,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:21,921 INFO L225 Difference]: With dead ends: 2152 [2021-11-23 14:09:21,921 INFO L226 Difference]: Without dead ends: 2152 [2021-11-23 14:09:21,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2021-11-23 14:09:21,923 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 850 mSDsluCounter, 5402 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 6521 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:21,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 6521 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 14:09:21,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2021-11-23 14:09:21,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 1259. [2021-11-23 14:09:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 818 states have (on average 1.7836185819070904) internal successors, (1459), 1258 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:21,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1459 transitions. [2021-11-23 14:09:21,957 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1459 transitions. Word has length 73 [2021-11-23 14:09:21,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:21,957 INFO L470 AbstractCegarLoop]: Abstraction has 1259 states and 1459 transitions. [2021-11-23 14:09:21,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1459 transitions. [2021-11-23 14:09:21,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 14:09:21,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:21,959 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:21,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:22,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:09:22,172 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:09:22,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash -376896730, now seen corresponding path program 2 times [2021-11-23 14:09:22,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:09:22,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570024519] [2021-11-23 14:09:22,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:09:22,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:09:22,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:09:22,175 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:09:22,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-23 14:09:22,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:09:22,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:09:22,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 14:09:22,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:22,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:09:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:23,410 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:09:23,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570024519] [2021-11-23 14:09:23,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570024519] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:09:23,410 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:09:23,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-23 14:09:23,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399978359] [2021-11-23 14:09:23,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:09:23,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 14:09:23,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:09:23,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 14:09:23,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-23 14:09:23,413 INFO L87 Difference]: Start difference. First operand 1259 states and 1459 transitions. Second operand has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:25,999 INFO L93 Difference]: Finished difference Result 2164 states and 2514 transitions. [2021-11-23 14:09:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-23 14:09:26,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 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 77 [2021-11-23 14:09:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:26,003 INFO L225 Difference]: With dead ends: 2164 [2021-11-23 14:09:26,004 INFO L226 Difference]: Without dead ends: 2164 [2021-11-23 14:09:26,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=370, Invalid=622, Unknown=0, NotChecked=0, Total=992 [2021-11-23 14:09:26,005 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 850 mSDsluCounter, 13179 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 14298 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:26,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 14298 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 14:09:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2021-11-23 14:09:26,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 1271. [2021-11-23 14:09:26,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 830 states have (on average 1.772289156626506) internal successors, (1471), 1270 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1471 transitions. [2021-11-23 14:09:26,039 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1471 transitions. Word has length 77 [2021-11-23 14:09:26,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:26,039 INFO L470 AbstractCegarLoop]: Abstraction has 1271 states and 1471 transitions. [2021-11-23 14:09:26,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:26,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1471 transitions. [2021-11-23 14:09:26,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-23 14:09:26,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:26,041 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:26,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-11-23 14:09:26,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:09:26,262 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:09:26,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash 688279334, now seen corresponding path program 3 times [2021-11-23 14:09:26,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:09:26,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064228269] [2021-11-23 14:09:26,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 14:09:26,264 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:09:26,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:09:26,265 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:09:26,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-23 14:09:27,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-23 14:09:27,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:09:27,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 14:09:27,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:27,846 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:27,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:09:29,383 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:29,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:09:29,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064228269] [2021-11-23 14:09:29,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064228269] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:09:29,385 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:09:29,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-23 14:09:29,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561933592] [2021-11-23 14:09:29,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:09:29,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 14:09:29,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:09:29,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 14:09:29,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 14:09:29,389 INFO L87 Difference]: Start difference. First operand 1271 states and 1471 transitions. Second operand has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:46,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:09:46,058 INFO L93 Difference]: Finished difference Result 15790 states and 18306 transitions. [2021-11-23 14:09:46,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-23 14:09:46,059 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 0 states have call successors, (0), 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 85 [2021-11-23 14:09:46,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:09:46,105 INFO L225 Difference]: With dead ends: 15790 [2021-11-23 14:09:46,106 INFO L226 Difference]: Without dead ends: 15790 [2021-11-23 14:09:46,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1674, Invalid=4332, Unknown=0, NotChecked=0, Total=6006 [2021-11-23 14:09:46,111 INFO L933 BasicCegarLoop]: 13109 mSDtfsCounter, 30471 mSDsluCounter, 185992 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30471 SdHoareTripleChecker+Valid, 199101 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-23 14:09:46,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30471 Valid, 199101 Invalid, 1735 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [164 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-11-23 14:09:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15790 states. [2021-11-23 14:09:46,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15790 to 1310. [2021-11-23 14:09:46,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 869 states have (on average 1.761795166858458) internal successors, (1531), 1309 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1531 transitions. [2021-11-23 14:09:46,252 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1531 transitions. Word has length 85 [2021-11-23 14:09:46,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:09:46,252 INFO L470 AbstractCegarLoop]: Abstraction has 1310 states and 1531 transitions. [2021-11-23 14:09:46,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:09:46,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1531 transitions. [2021-11-23 14:09:46,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 14:09:46,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:09:46,255 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:09:46,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-23 14:09:46,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:09:46,469 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:09:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:09:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2300122, now seen corresponding path program 4 times [2021-11-23 14:09:46,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:09:46,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156308967] [2021-11-23 14:09:46,470 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 14:09:46,471 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:09:46,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:09:46,471 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:09:46,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-23 14:09:46,787 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 14:09:46,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:09:46,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 14:09:46,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:09:48,319 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:48,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:09:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:09:51,570 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:09:51,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156308967] [2021-11-23 14:09:51,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156308967] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:09:51,571 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:09:51,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-23 14:09:51,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635922791] [2021-11-23 14:09:51,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:09:51,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-23 14:09:51,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:09:51,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-23 14:09:51,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-23 14:09:51,576 INFO L87 Difference]: Start difference. First operand 1310 states and 1531 transitions. Second operand has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:11:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:11:29,259 INFO L93 Difference]: Finished difference Result 2233 states and 2597 transitions. [2021-11-23 14:11:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-23 14:11:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 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 101 [2021-11-23 14:11:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:11:29,265 INFO L225 Difference]: With dead ends: 2233 [2021-11-23 14:11:29,265 INFO L226 Difference]: Without dead ends: 2233 [2021-11-23 14:11:29,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3304 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=3577, Invalid=8413, Unknown=0, NotChecked=0, Total=11990 [2021-11-23 14:11:29,271 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 894 mSDsluCounter, 36243 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 37362 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.6s IncrementalHoareTripleChecker+Time [2021-11-23 14:11:29,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 37362 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 68.6s Time] [2021-11-23 14:11:29,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2021-11-23 14:11:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 1340. [2021-11-23 14:11:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 899 states have (on average 1.728587319243604) internal successors, (1554), 1339 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:11:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1554 transitions. [2021-11-23 14:11:29,300 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1554 transitions. Word has length 101 [2021-11-23 14:11:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:11:29,300 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 1554 transitions. [2021-11-23 14:11:29,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:11:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1554 transitions. [2021-11-23 14:11:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-23 14:11:29,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:11:29,302 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:11:29,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-11-23 14:11:29,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:11:29,517 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:11:29,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:11:29,518 INFO L85 PathProgramCache]: Analyzing trace with hash -146191322, now seen corresponding path program 5 times [2021-11-23 14:11:29,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:11:29,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233901917] [2021-11-23 14:11:29,519 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 14:11:29,519 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:11:29,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:11:29,520 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:11:29,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-23 14:11:30,723 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-23 14:11:30,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:11:30,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-23 14:11:30,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:11:30,805 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 [2021-11-23 14:11:30,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 14:11:31,019 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 14:11:31,019 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 [2021-11-23 14:11:31,061 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 [2021-11-23 14:11:31,075 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 [2021-11-23 14:11:31,393 INFO L354 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2021-11-23 14:11:31,394 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 [2021-11-23 14:11:31,420 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 14:11:31,420 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 [2021-11-23 14:11:31,600 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:31,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:34,458 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:34,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:34,617 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:34,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:34,651 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:34,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:35,767 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:35,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:36,288 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:36,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:36,440 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:36,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:41,467 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 18 DAG size of output: 9 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 14:11:41,468 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:41,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:41,614 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:41,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:41,647 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:41,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:41,787 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:41,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:42,753 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:42,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:45,541 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:45,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:46,873 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:46,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:49,359 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:49,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:49,395 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:49,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:51,914 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:51,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:54,292 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:54,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:56,575 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:56,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:11:56,609 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:11:56,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:11:59,380 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:11:59,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:01,126 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:01,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:02,057 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:02,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:02,102 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:02,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:03,570 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:03,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:03,603 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:03,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:07,745 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:07,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:07,776 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:07,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:07,906 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:07,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:09,573 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:09,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:14,136 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:14,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:16,064 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:16,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:17,459 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:17,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:17,502 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:17,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:19,337 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:19,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:20,749 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:20,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:20,874 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:20,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:22,631 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:22,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:22,779 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:22,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:24,071 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:24,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:24,204 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:24,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:24,236 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:24,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:24,361 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:24,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:26,007 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:26,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:26,143 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:26,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:26,175 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:26,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:28,074 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:28,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:28,106 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:28,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:28,260 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:28,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:31,003 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:31,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:31,130 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:31,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:31,162 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:31,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:31,339 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:31,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:31,380 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:31,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:35,879 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:35,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:37,210 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:37,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:37,344 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:37,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:38,687 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:38,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:38,824 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:38,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:38,856 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:38,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:41,117 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:41,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:43,542 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:43,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:47,934 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:47,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:47,964 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:47,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:51,720 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:51,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:51,747 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:51,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:53,381 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:53,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:54,696 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:54,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:54,818 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:54,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:56,113 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:56,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:12:57,595 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:12:57,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:12:57,626 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:12:57,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:13:00,208 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:13:00,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:13:02,892 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:13:02,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:13:03,032 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:13:03,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:13:04,826 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:13:04,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:13:04,960 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:13:04,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:13:08,111 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:13:08,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:13:10,707 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:13:10,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:13:10,738 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:13:10,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:13:10,865 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:13:10,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:13:10,929 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:13:10,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:13:11,059 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-23 14:13:11,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-23 14:13:11,088 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 14:13:11,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-23 14:13:12,518 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:13:12,518 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 [2021-11-23 14:13:12,569 INFO L354 Elim1Store]: treesize reduction 104, result has 19.4 percent of original size [2021-11-23 14:13:12,569 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 [2021-11-23 14:13:12,948 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 14:13:12,948 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 [2021-11-23 14:13:12,961 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 14:13:12,961 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 [2021-11-23 14:13:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-23 14:13:13,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:13:30,697 WARN L227 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:13:48,368 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32)) (v_subst_13 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_13 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$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$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))) (forall ((v_subst_14 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5) (bvadd v_subst_14 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd .cse4 (_ bv20 32)))))) is different from false [2021-11-23 14:15:40,851 WARN L227 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:16:23,871 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_74 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_74 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))) (forall ((v_subst_73 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5) (bvadd v_subst_73 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd .cse4 (_ bv20 32)))))) is different from false [2021-11-23 14:16:25,952 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_73 (_ BitVec 32)) (v_subst_75 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_75 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_73 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_subst_76 (_ BitVec 32)) (v_subst_74 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_76 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd v_subst_74 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse6 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$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|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse6)))))) is different from false [2021-11-23 14:16:35,109 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_82 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_82 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))) (forall ((v_subst_81 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5) (bvadd v_subst_81 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd .cse4 (_ bv20 32)))))) is different from false [2021-11-23 14:17:25,214 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 26 treesize of output 24 [2021-11-23 14:17:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 119 proven. 40 refuted. 150 times theorem prover too weak. 511 trivial. 170 not checked. [2021-11-23 14:17:25,474 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:17:25,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233901917] [2021-11-23 14:17:25,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233901917] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:17:25,474 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:17:25,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15] total 22 [2021-11-23 14:17:25,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648784524] [2021-11-23 14:17:25,474 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:17:25,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-23 14:17:25,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:17:25,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-23 14:17:25,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=263, Unknown=13, NotChecked=148, Total=506 [2021-11-23 14:17:25,476 INFO L87 Difference]: Start difference. First operand 1340 states and 1554 transitions. Second operand has 23 states, 22 states have (on average 4.590909090909091) internal successors, (101), 23 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:17:29,045 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse10 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32)) (v_subst_13 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_13 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$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$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))) (forall ((v_subst_82 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse4 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse6 (bvadd v_subst_82 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse7 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse4 .cse5) .cse6 .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse4 (_ bv0 32)) .cse6 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))))) (forall ((v_subst_81 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse8 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse9) (bvadd v_subst_81 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse9))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32))))) (= |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse10)) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_main_~user~0#1.base|))) (= (select |c_#length| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (_ bv44 32)) (not (= |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| |c_ULTIMATE.start_main_~user~0#1.base|)) (forall ((v_subst_73 (_ BitVec 32)) (v_subst_75 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse11 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse12) (bvadd v_subst_75 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse12) (bvadd v_subst_73 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse12))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse11) (bvadd (_ bv20 32) .cse11)))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse10) (_ bv0 32)) (forall ((v_subst_76 (_ BitVec 32)) (v_subst_74 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse13 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse15 (bvadd v_subst_76 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse16 (bvadd v_subst_74 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse17 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse13 .cse14) .cse15 .cse14) .cse16 .cse14))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse17) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse13 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse17))))) (exists ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1_125| (_ BitVec 32))) (let ((.cse18 (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1_125| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|))) (and (= (_ bv0 32) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse18)) (= ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse18))))) (forall ((v_subst_14 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse19 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse20 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse20) (bvadd v_subst_14 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse20))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse19) (bvadd .cse19 (_ bv20 32))))))) is different from true [2021-11-23 14:17:31,066 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse14 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32)) (v_subst_13 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_13 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$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$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))) (forall ((v_subst_82 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse4 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse6 (bvadd v_subst_82 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse7 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse4 .cse5) .cse6 .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse4 (_ bv0 32)) .cse6 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))))) (forall ((v_subst_81 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse8 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse9) (bvadd v_subst_81 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse9))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32))))) (forall ((v_subst_74 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse10 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse12 (bvadd v_subst_74 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse13 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse10 .cse11) .cse12 .cse11))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse13) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse10 (_ bv0 32)) .cse12 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse13))))) (= |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse14)) (= (select |c_#length| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (_ bv44 32)) (not (= |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| |c_ULTIMATE.start_main_~user~0#1.base|)) (forall ((v_subst_73 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse15 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse16 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse16) (bvadd v_subst_73 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse16))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse15) (bvadd .cse15 (_ bv20 32))))) (forall ((v_subst_73 (_ BitVec 32)) (v_subst_75 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse17 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse18 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse18) (bvadd v_subst_75 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse18) (bvadd v_subst_73 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse18))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse17) (bvadd (_ bv20 32) .cse17)))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse14) (_ bv0 32)) (forall ((v_subst_76 (_ BitVec 32)) (v_subst_74 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse19 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse21 (bvadd v_subst_76 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse22 (bvadd v_subst_74 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse23 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse20 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse19 .cse20) .cse21 .cse20) .cse22 .cse20))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse23) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse19 (_ bv0 32)) .cse21 (_ bv0 32)) .cse22 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse23))))) (exists ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1_125| (_ BitVec 32))) (let ((.cse24 (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1_125| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|))) (and (= (_ bv0 32) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse24)) (= ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse24))))) (forall ((v_subst_14 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (let ((.cse25 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse26) (bvadd v_subst_14 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse26))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse25) (bvadd .cse25 (_ bv20 32))))))) is different from true [2021-11-23 14:17:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:17:41,230 INFO L93 Difference]: Finished difference Result 1726 states and 2056 transitions. [2021-11-23 14:17:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:17:41,230 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.590909090909091) internal successors, (101), 23 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-23 14:17:41,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:17:41,234 INFO L225 Difference]: With dead ends: 1726 [2021-11-23 14:17:41,234 INFO L226 Difference]: Without dead ends: 1726 [2021-11-23 14:17:41,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 129 SyntacticMatches, 79 SemanticMatches, 28 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 249.0s TimeCoverageRelationStatistics Valid=131, Invalid=430, Unknown=15, NotChecked=294, Total=870 [2021-11-23 14:17:41,235 INFO L933 BasicCegarLoop]: 683 mSDtfsCounter, 780 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 7791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5160 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-23 14:17:41,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [780 Valid, 3937 Invalid, 7791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2620 Invalid, 0 Unknown, 5160 Unchecked, 10.8s Time] [2021-11-23 14:17:41,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2021-11-23 14:17:41,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1339. [2021-11-23 14:17:41,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 899 states have (on average 1.7274749721913236) internal successors, (1553), 1338 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:17:41,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1553 transitions. [2021-11-23 14:17:41,256 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1553 transitions. Word has length 115 [2021-11-23 14:17:41,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:17:41,256 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 1553 transitions. [2021-11-23 14:17:41,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.590909090909091) internal successors, (101), 23 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:17:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1553 transitions. [2021-11-23 14:17:41,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-23 14:17:41,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:17:41,258 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:17:41,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-23 14:17:41,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 14:17:41,475 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 639 more)] === [2021-11-23 14:17:41,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:17:41,476 INFO L85 PathProgramCache]: Analyzing trace with hash -146191323, now seen corresponding path program 1 times [2021-11-23 14:17:41,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:17:41,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636774420] [2021-11-23 14:17:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:17:41,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:17:41,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 14:17:41,477 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:17:41,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9246bb96-2fad-4556-bd02-37f29c68a4d1/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-23 14:17:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:17:41,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-23 14:17:41,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:17:41,991 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 [2021-11-23 14:17:42,208 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 14:17:42,208 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 21 treesize of output 28 [2021-11-23 14:17:42,264 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 [2021-11-23 14:17:42,674 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 14:17:42,674 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 [2021-11-23 14:17:42,859 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:42,860 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 60 treesize of output 50 [2021-11-23 14:17:44,079 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:44,080 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 [2021-11-23 14:17:45,139 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:45,139 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 [2021-11-23 14:17:45,302 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:45,302 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 [2021-11-23 14:17:45,489 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:45,489 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 [2021-11-23 14:17:46,717 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:46,717 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 [2021-11-23 14:17:47,740 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:47,741 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 [2021-11-23 14:17:47,867 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:47,867 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 [2021-11-23 14:17:52,447 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:52,447 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 [2021-11-23 14:17:52,573 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:52,573 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 [2021-11-23 14:17:54,861 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:54,861 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 [2021-11-23 14:17:55,646 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:55,647 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 [2021-11-23 14:17:55,796 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:55,797 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 [2021-11-23 14:17:55,982 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:55,982 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 [2021-11-23 14:17:57,079 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:17:57,079 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 [2021-11-23 14:18:00,704 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:00,705 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 [2021-11-23 14:18:02,126 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:02,126 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 [2021-11-23 14:18:03,102 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:03,102 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 [2021-11-23 14:18:03,274 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:03,274 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 [2021-11-23 14:18:03,461 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:03,462 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 [2021-11-23 14:18:04,980 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:04,980 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 [2021-11-23 14:18:05,105 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:05,106 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 [2021-11-23 14:18:05,250 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:05,251 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 [2021-11-23 14:18:05,429 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:05,429 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 [2021-11-23 14:18:09,607 INFO L354 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2021-11-23 14:18:09,607 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 57 treesize of output 51 [2021-11-23 14:18:09,746 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:09,746 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 [2021-11-23 14:18:12,853 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:12,853 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 [2021-11-23 14:18:12,999 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:13,000 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 [2021-11-23 14:18:14,703 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:14,703 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 [2021-11-23 14:18:15,974 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:15,974 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 [2021-11-23 14:18:16,095 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:16,095 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 [2021-11-23 14:18:16,218 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:16,218 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 [2021-11-23 14:18:16,345 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:16,345 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 [2021-11-23 14:18:16,464 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:16,464 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 [2021-11-23 14:18:20,536 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:20,536 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 [2021-11-23 14:18:20,656 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:20,656 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 [2021-11-23 14:18:21,718 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:21,718 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 57 treesize of output 47 [2021-11-23 14:18:24,070 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:24,070 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 [2021-11-23 14:18:27,749 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:27,749 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 [2021-11-23 14:18:28,865 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:28,865 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 [2021-11-23 14:18:28,985 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:28,985 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 [2021-11-23 14:18:29,114 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:29,114 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 57 treesize of output 47 [2021-11-23 14:18:31,027 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 14:18:31,028 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 67 treesize of output 48 [2021-11-23 14:18:31,240 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-23 14:18:31,240 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 81 treesize of output 42 [2021-11-23 14:18:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-23 14:18:31,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:18:33,359 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr279#1| |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