./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:48:07,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:48:07,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:48:07,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:48:07,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:48:07,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:48:07,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:48:07,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:48:07,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:48:07,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:48:07,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:48:07,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:48:07,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:48:07,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:48:07,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:48:07,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:48:07,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:48:07,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:48:07,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:48:07,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:48:07,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:48:07,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:48:07,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:48:07,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:48:07,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:48:07,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:48:07,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:48:07,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:48:07,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:48:07,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:48:07,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:48:07,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:48:07,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:48:07,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:48:07,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:48:07,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:48:07,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:48:07,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:48:07,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:48:07,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:48:07,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:48:07,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 00:48:07,332 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:48:07,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:48:07,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:48:07,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:48:07,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:48:07,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:48:07,334 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:48:07,335 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:48:07,335 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:48:07,335 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:48:07,336 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:48:07,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:48:07,337 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:48:07,337 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:48:07,337 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:48:07,337 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:48:07,338 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:48:07,338 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:48:07,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:48:07,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:48:07,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:48:07,340 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:48:07,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:48:07,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:48:07,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:48:07,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:48:07,342 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:48:07,342 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:48:07,342 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:48:07,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:48:07,343 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:48:07,343 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:48:07,343 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:48:07,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:48:07,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:48:07,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:48:07,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:48:07,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:48:07,345 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:48:07,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:48:07,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:48:07,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:48:07,346 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 [2021-11-21 00:48:07,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:48:07,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:48:07,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:48:07,691 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:48:07,691 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:48:07,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2021-11-21 00:48:07,799 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data/44875ceb5/0156f6885c1449a1b9ede38bcc8fd737/FLAGa53e7fb6f [2021-11-21 00:48:08,364 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:48:08,364 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2021-11-21 00:48:08,399 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data/44875ceb5/0156f6885c1449a1b9ede38bcc8fd737/FLAGa53e7fb6f [2021-11-21 00:48:08,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data/44875ceb5/0156f6885c1449a1b9ede38bcc8fd737 [2021-11-21 00:48:08,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:48:08,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:48:08,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:48:08,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:48:08,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:48:08,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:48:08" (1/1) ... [2021-11-21 00:48:08,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783fbd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:08, skipping insertion in model container [2021-11-21 00:48:08,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:48:08" (1/1) ... [2021-11-21 00:48:08,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:48:08,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:48:09,136 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[33021,33034] [2021-11-21 00:48:09,286 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[45234,45247] [2021-11-21 00:48:09,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:48:09,301 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) [2021-11-21 00:48:09,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10e3d257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:09, skipping insertion in model container [2021-11-21 00:48:09,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:48:09,303 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-21 00:48:09,305 INFO L158 Benchmark]: Toolchain (without parser) took 667.68ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 72.6MB in the end (delta: -566.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:48:09,305 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:48:09,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 664.92ms. Allocated memory is still 109.1MB. Free memory was 71.8MB in the beginning and 72.6MB in the end (delta: -766.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:48:09,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 664.92ms. Allocated memory is still 109.1MB. Free memory was 71.8MB in the beginning and 72.6MB in the end (delta: -766.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:48:11,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:48:11,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:48:11,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:48:11,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:48:11,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:48:11,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:48:11,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:48:11,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:48:11,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:48:11,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:48:11,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:48:11,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:48:11,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:48:11,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:48:11,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:48:11,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:48:11,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:48:11,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:48:12,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:48:12,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:48:12,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:48:12,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:48:12,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:48:12,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:48:12,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:48:12,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:48:12,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:48:12,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:48:12,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:48:12,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:48:12,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:48:12,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:48:12,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:48:12,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:48:12,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:48:12,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:48:12,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:48:12,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:48:12,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:48:12,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:48:12,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-21 00:48:12,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:48:12,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:48:12,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:48:12,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:48:12,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:48:12,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:48:12,089 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:48:12,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:48:12,090 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:48:12,090 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:48:12,091 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:48:12,091 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:48:12,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:48:12,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:48:12,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:48:12,094 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:48:12,094 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:48:12,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:48:12,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:48:12,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:48:12,095 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:48:12,096 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:48:12,096 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:48:12,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:48:12,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:48:12,097 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:48:12,097 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:48:12,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:48:12,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:48:12,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:48:12,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:48:12,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:48:12,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:48:12,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:48:12,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:48:12,101 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:48:12,101 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:48:12,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:48:12,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:48:12,102 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 [2021-11-21 00:48:12,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:48:12,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:48:12,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:48:12,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:48:12,559 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:48:12,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2021-11-21 00:48:12,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data/dbdaa6fc5/ec791c9b6f0341f08e531e0dd083e6f5/FLAG70c9947c1 [2021-11-21 00:48:13,400 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:48:13,401 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2021-11-21 00:48:13,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data/dbdaa6fc5/ec791c9b6f0341f08e531e0dd083e6f5/FLAG70c9947c1 [2021-11-21 00:48:13,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/data/dbdaa6fc5/ec791c9b6f0341f08e531e0dd083e6f5 [2021-11-21 00:48:13,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:48:13,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:48:13,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:48:13,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:48:13,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:48:13,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:48:13" (1/1) ... [2021-11-21 00:48:13,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d14959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:13, skipping insertion in model container [2021-11-21 00:48:13,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:48:13" (1/1) ... [2021-11-21 00:48:13,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:48:13,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:48:14,215 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[33021,33034] [2021-11-21 00:48:14,367 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[45234,45247] [2021-11-21 00:48:14,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:48:14,391 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-21 00:48:14,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:48:14,473 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[33021,33034] [2021-11-21 00:48:14,573 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[45234,45247] [2021-11-21 00:48:14,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:48:14,582 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:48:14,611 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[33021,33034] [2021-11-21 00:48:14,666 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_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i[45234,45247] [2021-11-21 00:48:14,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:48:14,729 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:48:14,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14 WrapperNode [2021-11-21 00:48:14,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:48:14,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:48:14,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:48:14,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:48:14,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,836 INFO L137 Inliner]: procedures = 180, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1011 [2021-11-21 00:48:14,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:48:14,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:48:14,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:48:14,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:48:14,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:14,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:48:14,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:48:14,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:48:14,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:48:15,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (1/1) ... [2021-11-21 00:48:15,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:48:15,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:48:15,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:48:15,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:48:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-21 00:48:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:48:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:48:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:48:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:48:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:48:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-21 00:48:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-21 00:48:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:48:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:48:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:48:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:48:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:48:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:48:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:48:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:48:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:48:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:48:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:48:15,290 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:48:15,292 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:48:15,296 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-21 00:48:20,419 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:48:20,461 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:48:20,461 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-21 00:48:20,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:48:20 BoogieIcfgContainer [2021-11-21 00:48:20,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:48:20,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:48:20,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:48:20,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:48:20,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:48:13" (1/3) ... [2021-11-21 00:48:20,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758b582d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:48:20, skipping insertion in model container [2021-11-21 00:48:20,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:48:14" (2/3) ... [2021-11-21 00:48:20,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758b582d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:48:20, skipping insertion in model container [2021-11-21 00:48:20,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:48:20" (3/3) ... [2021-11-21 00:48:20,478 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test8-1.i [2021-11-21 00:48:20,483 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:48:20,484 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 536 error locations. [2021-11-21 00:48:20,545 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:48:20,555 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 [2021-11-21 00:48:20,555 INFO L340 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2021-11-21 00:48:20,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 1097 states, 540 states have (on average 2.240740740740741) internal successors, (1210), 1088 states have internal predecessors, (1210), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-21 00:48:20,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:48:20,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:20,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:48:20,611 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:20,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:20,617 INFO L85 PathProgramCache]: Analyzing trace with hash 132136, now seen corresponding path program 1 times [2021-11-21 00:48:20,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:20,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761369264] [2021-11-21 00:48:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:20,632 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:20,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:20,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:20,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:48:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:20,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:48:20,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:20,857 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 [2021-11-21 00:48:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:20,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:20,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:20,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761369264] [2021-11-21 00:48:20,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761369264] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:20,886 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:20,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:48:20,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535762318] [2021-11-21 00:48:20,889 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:20,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:48:20,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:48:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:20,922 INFO L87 Difference]: Start difference. First operand has 1097 states, 540 states have (on average 2.240740740740741) internal successors, (1210), 1088 states have internal predecessors, (1210), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) 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) [2021-11-21 00:48:23,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:23,143 INFO L93 Difference]: Finished difference Result 1100 states and 1186 transitions. [2021-11-21 00:48:23,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:48:23,146 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 [2021-11-21 00:48:23,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:23,170 INFO L225 Difference]: With dead ends: 1100 [2021-11-21 00:48:23,170 INFO L226 Difference]: Without dead ends: 1098 [2021-11-21 00:48:23,172 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 [2021-11-21 00:48:23,176 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 971 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:23,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 825 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 00:48:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-11-21 00:48:23,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1086. [2021-11-21 00:48:23,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 543 states have (on average 2.0902394106813995) internal successors, (1135), 1076 states have internal predecessors, (1135), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-21 00:48:23,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1177 transitions. [2021-11-21 00:48:23,287 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1177 transitions. Word has length 3 [2021-11-21 00:48:23,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:23,287 INFO L470 AbstractCegarLoop]: Abstraction has 1086 states and 1177 transitions. [2021-11-21 00:48:23,288 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) [2021-11-21 00:48:23,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1177 transitions. [2021-11-21 00:48:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:48:23,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:23,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:48:23,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:23,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:23,512 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:23,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash 132137, now seen corresponding path program 1 times [2021-11-21 00:48:23,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:23,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77139068] [2021-11-21 00:48:23,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:23,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:23,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:23,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:23,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:48:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:23,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:48:23,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:23,683 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 [2021-11-21 00:48:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:23,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:23,782 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:23,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77139068] [2021-11-21 00:48:23,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77139068] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:23,784 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:23,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 00:48:23,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125287352] [2021-11-21 00:48:23,784 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:23,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:48:23,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:23,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:48:23,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:48:23,787 INFO L87 Difference]: Start difference. First operand 1086 states and 1177 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) [2021-11-21 00:48:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:29,673 INFO L93 Difference]: Finished difference Result 1562 states and 1687 transitions. [2021-11-21 00:48:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:48:29,674 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 [2021-11-21 00:48:29,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:29,686 INFO L225 Difference]: With dead ends: 1562 [2021-11-21 00:48:29,686 INFO L226 Difference]: Without dead ends: 1562 [2021-11-21 00:48:29,686 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 [2021-11-21 00:48:29,688 INFO L933 BasicCegarLoop]: 832 mSDtfsCounter, 1136 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:29,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 1749 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-11-21 00:48:29,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2021-11-21 00:48:29,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1125. [2021-11-21 00:48:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 590 states have (on average 2.0694915254237287) internal successors, (1221), 1114 states have internal predecessors, (1221), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 00:48:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1265 transitions. [2021-11-21 00:48:29,781 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1265 transitions. Word has length 3 [2021-11-21 00:48:29,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:29,782 INFO L470 AbstractCegarLoop]: Abstraction has 1125 states and 1265 transitions. [2021-11-21 00:48:29,782 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) [2021-11-21 00:48:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1265 transitions. [2021-11-21 00:48:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:48:29,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:29,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:29,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:30,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:30,007 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:30,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:30,007 INFO L85 PathProgramCache]: Analyzing trace with hash -846217710, now seen corresponding path program 1 times [2021-11-21 00:48:30,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:30,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628339098] [2021-11-21 00:48:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:30,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:30,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:30,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:30,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:48:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:30,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:48:30,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:30,175 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 [2021-11-21 00:48:30,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:30,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:30,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:30,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628339098] [2021-11-21 00:48:30,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628339098] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:30,240 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:30,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:48:30,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996995348] [2021-11-21 00:48:30,242 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:30,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:48:30,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:30,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:48:30,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:30,247 INFO L87 Difference]: Start difference. First operand 1125 states and 1265 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) [2021-11-21 00:48:32,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:32,727 INFO L93 Difference]: Finished difference Result 1450 states and 1612 transitions. [2021-11-21 00:48:32,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:48:32,727 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 [2021-11-21 00:48:32,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:32,737 INFO L225 Difference]: With dead ends: 1450 [2021-11-21 00:48:32,738 INFO L226 Difference]: Without dead ends: 1450 [2021-11-21 00:48:32,738 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 [2021-11-21 00:48:32,740 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 990 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:32,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 1300 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 00:48:32,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2021-11-21 00:48:32,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1078. [2021-11-21 00:48:32,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 590 states have (on average 1.9813559322033898) internal successors, (1169), 1067 states have internal predecessors, (1169), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 00:48:32,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1213 transitions. [2021-11-21 00:48:32,784 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1213 transitions. Word has length 8 [2021-11-21 00:48:32,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:32,785 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1213 transitions. [2021-11-21 00:48:32,785 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) [2021-11-21 00:48:32,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1213 transitions. [2021-11-21 00:48:32,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:48:32,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:32,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:32,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:33,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:33,000 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:33,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash -846217709, now seen corresponding path program 1 times [2021-11-21 00:48:33,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:33,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168124767] [2021-11-21 00:48:33,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:33,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:33,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:33,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:33,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:48:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:33,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:48:33,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:33,211 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 [2021-11-21 00:48:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:33,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:33,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:33,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168124767] [2021-11-21 00:48:33,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168124767] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:33,383 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:33,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 00:48:33,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623871731] [2021-11-21 00:48:33,384 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:33,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:48:33,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:33,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:48:33,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:48:33,389 INFO L87 Difference]: Start difference. First operand 1078 states and 1213 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) [2021-11-21 00:48:38,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:38,359 INFO L93 Difference]: Finished difference Result 1509 states and 1633 transitions. [2021-11-21 00:48:38,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:48:38,372 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 [2021-11-21 00:48:38,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:38,383 INFO L225 Difference]: With dead ends: 1509 [2021-11-21 00:48:38,383 INFO L226 Difference]: Without dead ends: 1509 [2021-11-21 00:48:38,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:48:38,385 INFO L933 BasicCegarLoop]: 1182 mSDtfsCounter, 1416 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:38,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 1667 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-11-21 00:48:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2021-11-21 00:48:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1276. [2021-11-21 00:48:38,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 797 states have (on average 1.9786700125470515) internal successors, (1577), 1264 states have internal predecessors, (1577), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:48:38,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1623 transitions. [2021-11-21 00:48:38,434 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1623 transitions. Word has length 8 [2021-11-21 00:48:38,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:38,434 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 1623 transitions. [2021-11-21 00:48:38,435 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) [2021-11-21 00:48:38,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1623 transitions. [2021-11-21 00:48:38,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 00:48:38,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:38,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:38,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:38,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:38,649 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr534ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:38,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:38,650 INFO L85 PathProgramCache]: Analyzing trace with hash -652228184, now seen corresponding path program 1 times [2021-11-21 00:48:38,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:38,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846579470] [2021-11-21 00:48:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:38,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:38,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:38,653 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:38,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 00:48:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:38,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:48:38,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:38,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:48:38,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:48:38,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:48:38,949 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-21 00:48:38,950 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 [2021-11-21 00:48:39,028 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-21 00:48:39,029 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 [2021-11-21 00:48:39,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:39,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:39,137 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:39,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846579470] [2021-11-21 00:48:39,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846579470] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:39,137 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:39,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:48:39,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296274881] [2021-11-21 00:48:39,138 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:39,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:48:39,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:39,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:48:39,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:48:39,140 INFO L87 Difference]: Start difference. First operand 1276 states and 1623 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:48:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:41,808 INFO L93 Difference]: Finished difference Result 1786 states and 2342 transitions. [2021-11-21 00:48:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:48:41,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-21 00:48:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:41,822 INFO L225 Difference]: With dead ends: 1786 [2021-11-21 00:48:41,823 INFO L226 Difference]: Without dead ends: 1786 [2021-11-21 00:48:41,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:48:41,824 INFO L933 BasicCegarLoop]: 1048 mSDtfsCounter, 356 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:41,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 3970 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-21 00:48:41,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-11-21 00:48:41,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1276. [2021-11-21 00:48:41,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 797 states have (on average 1.9774153074027603) internal successors, (1576), 1264 states have internal predecessors, (1576), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:48:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1622 transitions. [2021-11-21 00:48:41,876 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1622 transitions. Word has length 10 [2021-11-21 00:48:41,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:41,877 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 1622 transitions. [2021-11-21 00:48:41,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:48:41,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1622 transitions. [2021-11-21 00:48:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:48:41,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:41,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:41,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:42,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:42,093 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:42,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:42,095 INFO L85 PathProgramCache]: Analyzing trace with hash -413650658, now seen corresponding path program 1 times [2021-11-21 00:48:42,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:42,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70861669] [2021-11-21 00:48:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:42,097 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:42,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:42,098 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:42,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 00:48:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:42,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:48:42,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:42,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:42,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:42,422 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:42,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70861669] [2021-11-21 00:48:42,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [70861669] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:42,423 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:42,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 00:48:42,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036359114] [2021-11-21 00:48:42,423 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:42,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:48:42,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:42,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:48:42,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:48:42,425 INFO L87 Difference]: Start difference. First operand 1276 states and 1622 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) [2021-11-21 00:48:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:42,479 INFO L93 Difference]: Finished difference Result 1243 states and 1588 transitions. [2021-11-21 00:48:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:48:42,480 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 [2021-11-21 00:48:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:42,490 INFO L225 Difference]: With dead ends: 1243 [2021-11-21 00:48:42,490 INFO L226 Difference]: Without dead ends: 1243 [2021-11-21 00:48:42,490 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 [2021-11-21 00:48:42,494 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 966 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1238 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 [2021-11-21 00:48:42,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 1238 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:48:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-11-21 00:48:42,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1234. [2021-11-21 00:48:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 779 states have (on average 1.9679075738125802) internal successors, (1533), 1222 states have internal predecessors, (1533), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:48:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1579 transitions. [2021-11-21 00:48:42,544 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1579 transitions. Word has length 18 [2021-11-21 00:48:42,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:42,548 INFO L470 AbstractCegarLoop]: Abstraction has 1234 states and 1579 transitions. [2021-11-21 00:48:42,548 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) [2021-11-21 00:48:42,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1579 transitions. [2021-11-21 00:48:42,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 00:48:42,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:42,549 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] [2021-11-21 00:48:42,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:42,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:42,764 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:42,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:42,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1913675577, now seen corresponding path program 1 times [2021-11-21 00:48:42,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:42,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085712688] [2021-11-21 00:48:42,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:42,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:42,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:42,766 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:42,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 00:48:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:42,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:48:42,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:43,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:43,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:43,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085712688] [2021-11-21 00:48:43,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085712688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:43,081 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:43,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-21 00:48:43,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072754628] [2021-11-21 00:48:43,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:43,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:48:43,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:48:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:48:43,083 INFO L87 Difference]: Start difference. First operand 1234 states and 1579 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) [2021-11-21 00:48:43,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:43,214 INFO L93 Difference]: Finished difference Result 1222 states and 1560 transitions. [2021-11-21 00:48:43,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:48:43,215 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 [2021-11-21 00:48:43,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:43,224 INFO L225 Difference]: With dead ends: 1222 [2021-11-21 00:48:43,224 INFO L226 Difference]: Without dead ends: 1222 [2021-11-21 00:48:43,224 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 [2021-11-21 00:48:43,226 INFO L933 BasicCegarLoop]: 1009 mSDtfsCounter, 1864 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:43,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1869 Valid, 2103 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:48:43,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-21 00:48:43,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1212. [2021-11-21 00:48:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 771 states have (on average 1.9507133592736705) internal successors, (1504), 1200 states have internal predecessors, (1504), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:48:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1550 transitions. [2021-11-21 00:48:43,264 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1550 transitions. Word has length 20 [2021-11-21 00:48:43,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:43,265 INFO L470 AbstractCegarLoop]: Abstraction has 1212 states and 1550 transitions. [2021-11-21 00:48:43,265 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) [2021-11-21 00:48:43,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1550 transitions. [2021-11-21 00:48:43,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:48:43,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:43,268 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] [2021-11-21 00:48:43,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:43,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:43,481 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:43,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753126, now seen corresponding path program 1 times [2021-11-21 00:48:43,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:43,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326440822] [2021-11-21 00:48:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:43,483 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:43,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:43,484 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:43,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 00:48:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:43,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:48:43,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:43,671 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 [2021-11-21 00:48:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:43,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:43,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:43,966 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:43,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326440822] [2021-11-21 00:48:43,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326440822] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:43,967 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:43,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:48:43,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124007199] [2021-11-21 00:48:43,967 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:43,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:48:43,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:43,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:48:43,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:48:43,968 INFO L87 Difference]: Start difference. First operand 1212 states and 1550 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) [2021-11-21 00:48:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:46,590 INFO L93 Difference]: Finished difference Result 1802 states and 2373 transitions. [2021-11-21 00:48:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:48:46,591 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 [2021-11-21 00:48:46,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:46,604 INFO L225 Difference]: With dead ends: 1802 [2021-11-21 00:48:46,604 INFO L226 Difference]: Without dead ends: 1802 [2021-11-21 00:48:46,605 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 [2021-11-21 00:48:46,606 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 2108 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:46,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2110 Valid, 999 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-21 00:48:46,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2021-11-21 00:48:46,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1208. [2021-11-21 00:48:46,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 771 states have (on average 1.9455252918287937) internal successors, (1500), 1196 states have internal predecessors, (1500), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:48:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1546 transitions. [2021-11-21 00:48:46,651 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1546 transitions. Word has length 34 [2021-11-21 00:48:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:46,652 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1546 transitions. [2021-11-21 00:48:46,652 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) [2021-11-21 00:48:46,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1546 transitions. [2021-11-21 00:48:46,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:48:46,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:46,654 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] [2021-11-21 00:48:46,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:46,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:46,869 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:46,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:46,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753127, now seen corresponding path program 1 times [2021-11-21 00:48:46,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:46,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520787160] [2021-11-21 00:48:46,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:46,871 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:46,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:46,872 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:46,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-21 00:48:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:47,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:48:47,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:47,081 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 [2021-11-21 00:48:47,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:47,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:48,008 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:48,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520787160] [2021-11-21 00:48:48,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520787160] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:48,008 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:48,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:48:48,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105133906] [2021-11-21 00:48:48,009 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:48,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:48:48,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:48,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:48:48,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:48:48,011 INFO L87 Difference]: Start difference. First operand 1208 states and 1546 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) [2021-11-21 00:48:56,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:56,599 INFO L93 Difference]: Finished difference Result 1449 states and 1564 transitions. [2021-11-21 00:48:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:48:56,602 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 [2021-11-21 00:48:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:56,609 INFO L225 Difference]: With dead ends: 1449 [2021-11-21 00:48:56,609 INFO L226 Difference]: Without dead ends: 1449 [2021-11-21 00:48:56,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:48:56,610 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 1263 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2645 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:56,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 2645 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-21 00:48:56,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2021-11-21 00:48:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1204. [2021-11-21 00:48:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 771 states have (on average 1.940337224383917) internal successors, (1496), 1192 states have internal predecessors, (1496), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:48:56,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1542 transitions. [2021-11-21 00:48:56,668 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1542 transitions. Word has length 34 [2021-11-21 00:48:56,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:56,670 INFO L470 AbstractCegarLoop]: Abstraction has 1204 states and 1542 transitions. [2021-11-21 00:48:56,671 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) [2021-11-21 00:48:56,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1542 transitions. [2021-11-21 00:48:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-21 00:48:56,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:56,677 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] [2021-11-21 00:48:56,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:56,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:56,893 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:56,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:56,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1045534242, now seen corresponding path program 1 times [2021-11-21 00:48:56,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:56,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608062899] [2021-11-21 00:48:56,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:56,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:56,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:56,897 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:56,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-21 00:48:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:57,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:48:57,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:57,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:57,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:57,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:57,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608062899] [2021-11-21 00:48:57,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608062899] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:57,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:57,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:48:57,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265534838] [2021-11-21 00:48:57,416 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:57,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:48:57,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:57,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:48:57,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:48:57,418 INFO L87 Difference]: Start difference. First operand 1204 states and 1542 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:48:57,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:57,491 INFO L93 Difference]: Finished difference Result 1207 states and 1541 transitions. [2021-11-21 00:48:57,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:48:57,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-21 00:48:57,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:57,499 INFO L225 Difference]: With dead ends: 1207 [2021-11-21 00:48:57,499 INFO L226 Difference]: Without dead ends: 1207 [2021-11-21 00:48:57,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:48:57,501 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 913 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:57,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2081 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:48:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-11-21 00:48:57,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1198. [2021-11-21 00:48:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 765 states have (on average 1.942483660130719) internal successors, (1486), 1186 states have internal predecessors, (1486), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:48:57,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1532 transitions. [2021-11-21 00:48:57,532 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1532 transitions. Word has length 49 [2021-11-21 00:48:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:57,533 INFO L470 AbstractCegarLoop]: Abstraction has 1198 states and 1532 transitions. [2021-11-21 00:48:57,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:48:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1532 transitions. [2021-11-21 00:48:57,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 00:48:57,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:57,539 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] [2021-11-21 00:48:57,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:57,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:57,758 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:57,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:57,758 INFO L85 PathProgramCache]: Analyzing trace with hash -551406574, now seen corresponding path program 1 times [2021-11-21 00:48:57,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:57,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564647769] [2021-11-21 00:48:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:57,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:57,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:57,760 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:57,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-21 00:48:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:57,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:48:57,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:58,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:58,961 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:48:58,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564647769] [2021-11-21 00:48:58,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564647769] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:58,961 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:58,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:48:58,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822608458] [2021-11-21 00:48:58,962 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:58,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:48:58,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:48:58,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:48:58,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:58,963 INFO L87 Difference]: Start difference. First operand 1198 states and 1532 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:48:59,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:59,283 INFO L93 Difference]: Finished difference Result 1738 states and 2267 transitions. [2021-11-21 00:48:59,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:48:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-21 00:48:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:59,300 INFO L225 Difference]: With dead ends: 1738 [2021-11-21 00:48:59,300 INFO L226 Difference]: Without dead ends: 1738 [2021-11-21 00:48:59,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:48:59,301 INFO L933 BasicCegarLoop]: 1212 mSDtfsCounter, 407 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:59,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 2072 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:48:59,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2021-11-21 00:48:59,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1559. [2021-11-21 00:48:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1124 states have (on average 1.9252669039145907) internal successors, (2164), 1545 states have internal predecessors, (2164), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:48:59,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2214 transitions. [2021-11-21 00:48:59,362 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2214 transitions. Word has length 57 [2021-11-21 00:48:59,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:59,362 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2214 transitions. [2021-11-21 00:48:59,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:48:59,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2214 transitions. [2021-11-21 00:48:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-21 00:48:59,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:59,364 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] [2021-11-21 00:48:59,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:59,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:48:59,578 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:48:59,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:59,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1189287633, now seen corresponding path program 1 times [2021-11-21 00:48:59,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:48:59,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242498373] [2021-11-21 00:48:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:59,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:48:59,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:48:59,580 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:48:59,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-21 00:48:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:59,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:48:59,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:59,921 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 [2021-11-21 00:48:59,930 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 [2021-11-21 00:49:00,764 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:49:00,765 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 25 treesize of output 27 [2021-11-21 00:49:00,785 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:49:00,786 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 24 treesize of output 20 [2021-11-21 00:49:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:00,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:06,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:49:06,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242498373] [2021-11-21 00:49:06,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242498373] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:06,310 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:06,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:49:06,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569671076] [2021-11-21 00:49:06,310 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:06,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:49:06,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:49:06,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:49:06,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-21 00:49:06,312 INFO L87 Difference]: Start difference. First operand 1559 states and 2214 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) [2021-11-21 00:49:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:12,791 INFO L93 Difference]: Finished difference Result 2164 states and 2912 transitions. [2021-11-21 00:49:12,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:49:12,793 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 [2021-11-21 00:49:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:12,807 INFO L225 Difference]: With dead ends: 2164 [2021-11-21 00:49:12,807 INFO L226 Difference]: Without dead ends: 2164 [2021-11-21 00:49:12,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-21 00:49:12,808 INFO L933 BasicCegarLoop]: 754 mSDtfsCounter, 1500 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1486 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:12,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 2152 Invalid, 3013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1484 Invalid, 0 Unknown, 1486 Unchecked, 6.4s Time] [2021-11-21 00:49:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2021-11-21 00:49:12,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 1171. [2021-11-21 00:49:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 772 states have (on average 1.8264248704663213) internal successors, (1410), 1159 states have internal predecessors, (1410), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:49:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1456 transitions. [2021-11-21 00:49:12,847 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1456 transitions. Word has length 60 [2021-11-21 00:49:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:12,848 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1456 transitions. [2021-11-21 00:49:12,848 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) [2021-11-21 00:49:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1456 transitions. [2021-11-21 00:49:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 00:49:12,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:12,850 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] [2021-11-21 00:49:12,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:13,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:49:13,066 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:49:13,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:13,067 INFO L85 PathProgramCache]: Analyzing trace with hash 444125234, now seen corresponding path program 1 times [2021-11-21 00:49:13,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:49:13,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335096942] [2021-11-21 00:49:13,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:13,068 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:49:13,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:49:13,069 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:49:13,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-21 00:49:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:13,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:49:13,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:13,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:13,781 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 [2021-11-21 00:49:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:14,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:49:14,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335096942] [2021-11-21 00:49:14,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335096942] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:14,267 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:14,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:49:14,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670706473] [2021-11-21 00:49:14,267 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:14,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:49:14,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:49:14,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:49:14,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:49:14,269 INFO L87 Difference]: Start difference. First operand 1171 states and 1456 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) [2021-11-21 00:49:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:16,589 INFO L93 Difference]: Finished difference Result 1169 states and 1454 transitions. [2021-11-21 00:49:16,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:49:16,591 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 [2021-11-21 00:49:16,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:16,597 INFO L225 Difference]: With dead ends: 1169 [2021-11-21 00:49:16,597 INFO L226 Difference]: Without dead ends: 1169 [2021-11-21 00:49:16,597 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 [2021-11-21 00:49:16,598 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1754 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:16,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 710 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 00:49:16,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-11-21 00:49:16,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2021-11-21 00:49:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 772 states have (on average 1.8238341968911918) internal successors, (1408), 1157 states have internal predecessors, (1408), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:49:16,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1454 transitions. [2021-11-21 00:49:16,628 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1454 transitions. Word has length 62 [2021-11-21 00:49:16,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:16,629 INFO L470 AbstractCegarLoop]: Abstraction has 1169 states and 1454 transitions. [2021-11-21 00:49:16,629 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) [2021-11-21 00:49:16,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1454 transitions. [2021-11-21 00:49:16,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-21 00:49:16,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:16,638 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] [2021-11-21 00:49:16,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:16,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:49:16,854 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:49:16,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:16,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054235, now seen corresponding path program 1 times [2021-11-21 00:49:16,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:49:16,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364616219] [2021-11-21 00:49:16,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:16,856 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:49:16,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:49:16,857 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:49:16,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-21 00:49:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:17,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:49:17,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:17,293 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 [2021-11-21 00:49:17,313 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 [2021-11-21 00:49:17,365 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 [2021-11-21 00:49:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:17,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:17,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:49:17,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364616219] [2021-11-21 00:49:17,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364616219] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:17,554 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:17,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:49:17,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462233711] [2021-11-21 00:49:17,555 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:17,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:49:17,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:49:17,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:49:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:49:17,556 INFO L87 Difference]: Start difference. First operand 1169 states and 1454 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:49:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:21,288 INFO L93 Difference]: Finished difference Result 1168 states and 1453 transitions. [2021-11-21 00:49:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:49:21,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-11-21 00:49:21,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:21,294 INFO L225 Difference]: With dead ends: 1168 [2021-11-21 00:49:21,294 INFO L226 Difference]: Without dead ends: 1168 [2021-11-21 00:49:21,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:49:21,295 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 4 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:21,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2552 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-21 00:49:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2021-11-21 00:49:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1168. [2021-11-21 00:49:21,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 772 states have (on average 1.822538860103627) internal successors, (1407), 1156 states have internal predecessors, (1407), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:49:21,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1453 transitions. [2021-11-21 00:49:21,324 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1453 transitions. Word has length 65 [2021-11-21 00:49:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:21,324 INFO L470 AbstractCegarLoop]: Abstraction has 1168 states and 1453 transitions. [2021-11-21 00:49:21,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:49:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1453 transitions. [2021-11-21 00:49:21,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-21 00:49:21,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:21,326 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] [2021-11-21 00:49:21,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-21 00:49:21,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:49:21,563 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:49:21,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:21,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054234, now seen corresponding path program 1 times [2021-11-21 00:49:21,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:49:21,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816370397] [2021-11-21 00:49:21,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:21,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:49:21,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:49:21,565 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:49:21,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-21 00:49:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:21,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:49:21,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:21,898 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 [2021-11-21 00:49:21,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-21 00:49:21,944 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 [2021-11-21 00:49:22,009 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 [2021-11-21 00:49:22,014 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 [2021-11-21 00:49:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:22,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:22,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:22,354 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:49:22,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816370397] [2021-11-21 00:49:22,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816370397] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:22,354 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:22,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-21 00:49:22,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086424216] [2021-11-21 00:49:22,354 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:22,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:49:22,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:49:22,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:49:22,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:49:22,356 INFO L87 Difference]: Start difference. First operand 1168 states and 1453 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:49:29,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:29,752 INFO L93 Difference]: Finished difference Result 1167 states and 1452 transitions. [2021-11-21 00:49:29,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:49:29,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-21 00:49:29,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:29,759 INFO L225 Difference]: With dead ends: 1167 [2021-11-21 00:49:29,759 INFO L226 Difference]: Without dead ends: 1167 [2021-11-21 00:49:29,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:49:29,760 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 4 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:29,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2583 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2021-11-21 00:49:29,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2021-11-21 00:49:29,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1167. [2021-11-21 00:49:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 771 states have (on average 1.8236057068741893) internal successors, (1406), 1155 states have internal predecessors, (1406), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:49:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1452 transitions. [2021-11-21 00:49:29,779 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1452 transitions. Word has length 65 [2021-11-21 00:49:29,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:29,779 INFO L470 AbstractCegarLoop]: Abstraction has 1167 states and 1452 transitions. [2021-11-21 00:49:29,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:49:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1452 transitions. [2021-11-21 00:49:29,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-21 00:49:29,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:29,780 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, 1, 1] [2021-11-21 00:49:29,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:29,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:49:29,981 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:49:29,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:29,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1441347596, now seen corresponding path program 1 times [2021-11-21 00:49:29,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:49:29,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404952583] [2021-11-21 00:49:29,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:29,982 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:49:29,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:49:29,982 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:49:29,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-21 00:49:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:30,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:49:30,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:30,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:30,510 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:49:30,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404952583] [2021-11-21 00:49:30,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404952583] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:49:30,511 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:49:30,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:49:30,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382968095] [2021-11-21 00:49:30,511 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:49:30,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:49:30,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:49:30,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:49:30,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:49:30,514 INFO L87 Difference]: Start difference. First operand 1167 states and 1452 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:49:30,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:30,621 INFO L93 Difference]: Finished difference Result 1177 states and 1465 transitions. [2021-11-21 00:49:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:49:30,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-21 00:49:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:30,629 INFO L225 Difference]: With dead ends: 1177 [2021-11-21 00:49:30,629 INFO L226 Difference]: Without dead ends: 1177 [2021-11-21 00:49:30,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:49:30,630 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 11 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:30,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 1930 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:49:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2021-11-21 00:49:30,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2021-11-21 00:49:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 779 states have (on average 1.8202824133504494) internal successors, (1418), 1164 states have internal predecessors, (1418), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-21 00:49:30,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1465 transitions. [2021-11-21 00:49:30,656 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1465 transitions. Word has length 73 [2021-11-21 00:49:30,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:30,657 INFO L470 AbstractCegarLoop]: Abstraction has 1177 states and 1465 transitions. [2021-11-21 00:49:30,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:49:30,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1465 transitions. [2021-11-21 00:49:30,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-21 00:49:30,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:30,658 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, 1, 1] [2021-11-21 00:49:30,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:30,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:49:30,872 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:49:30,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:30,873 INFO L85 PathProgramCache]: Analyzing trace with hash 954167724, now seen corresponding path program 1 times [2021-11-21 00:49:30,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:49:30,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683972385] [2021-11-21 00:49:30,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:30,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:49:30,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:49:30,875 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:49:30,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-21 00:49:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:31,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:49:31,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:31,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:31,552 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:49:31,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683972385] [2021-11-21 00:49:31,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683972385] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:49:31,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [219548486] [2021-11-21 00:49:31,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:31,552 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:49:31,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:49:31,554 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:49:31,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-21 00:49:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:31,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:49:31,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:31,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:32,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:32,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [219548486] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:49:32,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224409863] [2021-11-21 00:49:32,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:49:32,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:32,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:49:32,161 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:49:32,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-21 00:49:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:49:32,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:49:32,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:32,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:32,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224409863] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:49:32,843 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:49:32,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-21 00:49:32,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168607893] [2021-11-21 00:49:32,844 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:49:32,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 00:49:32,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:49:32,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 00:49:32,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-21 00:49:32,846 INFO L87 Difference]: Start difference. First operand 1177 states and 1465 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 00:49:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:49:33,303 INFO L93 Difference]: Finished difference Result 1191 states and 1482 transitions. [2021-11-21 00:49:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-21 00:49:33,305 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2021-11-21 00:49:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:49:33,312 INFO L225 Difference]: With dead ends: 1191 [2021-11-21 00:49:33,312 INFO L226 Difference]: Without dead ends: 1185 [2021-11-21 00:49:33,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-21 00:49:33,313 INFO L933 BasicCegarLoop]: 966 mSDtfsCounter, 27 mSDsluCounter, 7684 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 8650 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:49:33,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 8650 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:49:33,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2021-11-21 00:49:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1183. [2021-11-21 00:49:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 785 states have (on average 1.8152866242038217) internal successors, (1425), 1170 states have internal predecessors, (1425), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-21 00:49:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1472 transitions. [2021-11-21 00:49:33,338 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1472 transitions. Word has length 75 [2021-11-21 00:49:33,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:49:33,339 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1472 transitions. [2021-11-21 00:49:33,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 00:49:33,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1472 transitions. [2021-11-21 00:49:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-21 00:49:33,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:49:33,339 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, 1, 1] [2021-11-21 00:49:33,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:33,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-21 00:49:33,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-21 00:49:33,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:49:33,941 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-21 00:49:33,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:49:33,941 INFO L85 PathProgramCache]: Analyzing trace with hash -617730836, now seen corresponding path program 2 times [2021-11-21 00:49:33,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:49:33,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801966681] [2021-11-21 00:49:33,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:49:33,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:49:33,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:49:33,943 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:49:33,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-21 00:49:34,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:49:34,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:49:34,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:49:34,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:34,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:35,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:49:35,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801966681] [2021-11-21 00:49:35,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801966681] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:49:35,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1407473394] [2021-11-21 00:49:35,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:49:35,023 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:49:35,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:49:35,029 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:49:35,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2021-11-21 00:49:35,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:49:35,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:49:35,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:49:35,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:36,005 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:36,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:49:36,267 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:49:36,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1407473394] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:49:36,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102057534] [2021-11-21 00:49:36,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:49:36,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:49:36,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:49:36,269 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:49:36,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6289a3-bcb7-4c98-9e0e-61738bae96a9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-21 00:49:59,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:49:59,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:49:59,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 00:49:59,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:49:59,980 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 [2021-11-21 00:50:00,308 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:50:00,308 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 [2021-11-21 00:50:00,376 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 18 treesize of output 14 [2021-11-21 00:51:44,341 WARN L227 SmtUtils]: Spent 18.05s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:51:44,342 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-21 00:51:44,342 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 2 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 81 [2021-11-21 00:51:44,903 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-21 00:51:44,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 40 [2021-11-21 00:51:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:51:44,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:51:46,744 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 00:51:46,744 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 66 treesize of output 65 [2021-11-21 00:56:58,446 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 00:56:58,446 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 115 treesize of output 114 [2021-11-21 00:57:01,563 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr235| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr235|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) is different from false [2021-11-21 00:57:08,234 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:57:08,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102057534] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:57:08,234 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:57:08,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-21 00:57:08,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687875264] [2021-11-21 00:57:08,235 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:57:08,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-21 00:57:08,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:57:08,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-21 00:57:08,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1539, Unknown=177, NotChecked=84, Total=1980 [2021-11-21 00:57:08,238 INFO L87 Difference]: Start difference. First operand 1183 states and 1472 transitions. Second operand has 45 states, 43 states have (on average 5.372093023255814) internal successors, (231), 43 states have internal predecessors, (231), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:57:15,157 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr235| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr235|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)) |c_#Ultimate.C_memset_#ptr.base|))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-21 00:59:27,853 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr235| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr235|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr235| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_112| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr235|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr235| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_112| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_114| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr235|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr235|) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:59:29,908 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr235| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr235|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr235| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_112| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr235|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr235|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:59:31,931 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_86| (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_86|) (_ bv0 32))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr235| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr235|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr235|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) is different from false [2021-11-21 00:59:33,947 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_108|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_104|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr235_103|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr235|) (exists ((|v_#Ultimate.C_memset_#t~loopctr235_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr235_86| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_86|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr235_87|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 01:02:09,821 WARN L227 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 80 DAG size of output: 68 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)