./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:10:29,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:10:29,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:10:29,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:10:29,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:10:29,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:10:29,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:10:29,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:10:29,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:10:29,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:10:29,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:10:29,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:10:29,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:10:29,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:10:29,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:10:29,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:10:29,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:10:29,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:10:29,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:10:29,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:10:29,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:10:29,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:10:29,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:10:29,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:10:29,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:10:29,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:10:29,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:10:29,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:10:29,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:10:29,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:10:29,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:10:29,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:10:29,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:10:29,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:10:29,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:10:29,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:10:29,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:10:29,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:10:29,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:10:29,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:10:29,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:10:29,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-22 16:10:29,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:10:29,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:10:29,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:10:29,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:10:29,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:10:29,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:10:29,495 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:10:29,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:10:29,496 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:10:29,496 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 16:10:29,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:10:29,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:10:29,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:10:29,497 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 16:10:29,497 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 16:10:29,497 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 16:10:29,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:10:29,498 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 16:10:29,498 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:10:29,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:10:29,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:10:29,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:10:29,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:10:29,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:10:29,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:10:29,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:10:29,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:10:29,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:10:29,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:10:29,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2021-11-22 16:10:29,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:10:29,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:10:29,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:10:29,793 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:10:29,795 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:10:29,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2021-11-22 16:10:29,854 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data/695512ff0/3deeb45daa724d7e9c0e762dbc08a77f/FLAG05259a694 [2021-11-22 16:10:30,555 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:10:30,555 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2021-11-22 16:10:30,588 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data/695512ff0/3deeb45daa724d7e9c0e762dbc08a77f/FLAG05259a694 [2021-11-22 16:10:30,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data/695512ff0/3deeb45daa724d7e9c0e762dbc08a77f [2021-11-22 16:10:30,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:10:30,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:10:30,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:10:30,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:10:30,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:10:30,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:10:30" (1/1) ... [2021-11-22 16:10:30,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a12740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:30, skipping insertion in model container [2021-11-22 16:10:30,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:10:30" (1/1) ... [2021-11-22 16:10:30,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:10:30,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:10:31,293 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2021-11-22 16:10:31,456 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2021-11-22 16:10:31,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:10:31,509 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-22 16:10:31,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2bfe7846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:31, skipping insertion in model container [2021-11-22 16:10:31,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:10:31,511 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-22 16:10:31,513 INFO L158 Benchmark]: Toolchain (without parser) took 799.93ms. Allocated memory is still 104.9MB. Free memory was 63.6MB in the beginning and 64.6MB in the end (delta: -977.9kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 16:10:31,513 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:10:31,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 794.44ms. Allocated memory is still 104.9MB. Free memory was 63.4MB in the beginning and 64.6MB in the end (delta: -1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 16:10:31,516 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 104.9MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 794.44ms. Allocated memory is still 104.9MB. Free memory was 63.4MB in the beginning and 64.6MB in the end (delta: -1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:10:33,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:10:33,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:10:33,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:10:33,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:10:33,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:10:33,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:10:33,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:10:33,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:10:33,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:10:33,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:10:33,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:10:33,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:10:33,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:10:33,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:10:33,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:10:33,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:10:33,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:10:33,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:10:33,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:10:33,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:10:33,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:10:33,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:10:33,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:10:33,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:10:33,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:10:33,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:10:33,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:10:33,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:10:33,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:10:33,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:10:33,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:10:33,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:10:33,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:10:33,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:10:33,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:10:33,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:10:33,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:10:33,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:10:33,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:10:33,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:10:33,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-22 16:10:34,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:10:34,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:10:34,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:10:34,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:10:34,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:10:34,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:10:34,007 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:10:34,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:10:34,008 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:10:34,008 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 16:10:34,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:10:34,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:10:34,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:10:34,009 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 16:10:34,009 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 16:10:34,010 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 16:10:34,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:10:34,010 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 16:10:34,011 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 16:10:34,011 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 16:10:34,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:10:34,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:10:34,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:10:34,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:10:34,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:10:34,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:10:34,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:10:34,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:10:34,017 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 16:10:34,017 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 16:10:34,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:10:34,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 16:10:34,018 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2021-11-22 16:10:34,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:10:34,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:10:34,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:10:34,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:10:34,505 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:10:34,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2021-11-22 16:10:34,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data/e633d4052/181d7a93f658421e8cb0851ec8e9538d/FLAGd4e39c69a [2021-11-22 16:10:35,374 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:10:35,375 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2021-11-22 16:10:35,399 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data/e633d4052/181d7a93f658421e8cb0851ec8e9538d/FLAGd4e39c69a [2021-11-22 16:10:35,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/data/e633d4052/181d7a93f658421e8cb0851ec8e9538d [2021-11-22 16:10:35,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:10:35,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:10:35,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:10:35,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:10:35,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:10:35,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:10:35" (1/1) ... [2021-11-22 16:10:35,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6863ca37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:35, skipping insertion in model container [2021-11-22 16:10:35,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:10:35" (1/1) ... [2021-11-22 16:10:35,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:10:35,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:10:36,030 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2021-11-22 16:10:36,255 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2021-11-22 16:10:36,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:10:36,330 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-22 16:10:36,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:10:36,395 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2021-11-22 16:10:36,535 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2021-11-22 16:10:36,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:10:36,565 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:10:36,618 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2021-11-22 16:10:36,670 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_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2021-11-22 16:10:36,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:10:36,721 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:10:36,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36 WrapperNode [2021-11-22 16:10:36,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:10:36,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:10:36,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:10:36,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:10:36,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:36,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:36,886 INFO L137 Inliner]: procedures = 180, calls = 487, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 1766 [2021-11-22 16:10:36,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:10:36,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:10:36,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:10:36,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:10:36,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:36,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:36,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:36,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:36,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:37,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:37,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:37,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:10:37,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:10:37,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:10:37,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:10:37,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (1/1) ... [2021-11-22 16:10:37,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:10:37,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:10:37,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:10:37,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:10:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-22 16:10:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 16:10:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 16:10:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:10:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 16:10:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 16:10:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 16:10:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 16:10:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:10:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 16:10:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 16:10:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:10:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:10:37,481 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:10:37,483 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:10:45,441 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:10:45,462 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:10:45,462 INFO L301 CfgBuilder]: Removed 100 assume(true) statements. [2021-11-22 16:10:45,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:10:45 BoogieIcfgContainer [2021-11-22 16:10:45,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:10:45,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:10:45,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:10:45,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:10:45,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:10:35" (1/3) ... [2021-11-22 16:10:45,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3072bd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:10:45, skipping insertion in model container [2021-11-22 16:10:45,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:10:36" (2/3) ... [2021-11-22 16:10:45,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3072bd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:10:45, skipping insertion in model container [2021-11-22 16:10:45,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:10:45" (3/3) ... [2021-11-22 16:10:45,476 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2021-11-22 16:10:45,482 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:10:45,482 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 936 error locations. [2021-11-22 16:10:45,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:10:45,536 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:10:45,536 INFO L340 AbstractCegarLoop]: Starting to check reachability of 936 error locations. [2021-11-22 16:10:45,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 1855 states, 918 states have (on average 2.2505446623093683) internal successors, (2066), 1854 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 16:10:45,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:10:45,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 16:10:45,601 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:10:45,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:10:45,607 INFO L85 PathProgramCache]: Analyzing trace with hash 28698764, now seen corresponding path program 1 times [2021-11-22 16:10:45,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:10:45,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664164144] [2021-11-22 16:10:45,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:10:45,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:10:45,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:10:45,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:10:45,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 16:10:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:10:45,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 16:10:45,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:10:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:10:45,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:10:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:10:45,943 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:10:45,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664164144] [2021-11-22 16:10:45,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664164144] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:10:45,944 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:10:45,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 16:10:45,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849050158] [2021-11-22 16:10:45,947 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:10:45,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:10:45,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:10:45,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:10:45,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:10:45,984 INFO L87 Difference]: Start difference. First operand has 1855 states, 918 states have (on average 2.2505446623093683) internal successors, (2066), 1854 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:46,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:10:46,151 INFO L93 Difference]: Finished difference Result 1837 states and 1935 transitions. [2021-11-22 16:10:46,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:10:46,154 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-22 16:10:46,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:10:46,188 INFO L225 Difference]: With dead ends: 1837 [2021-11-22 16:10:46,188 INFO L226 Difference]: Without dead ends: 1835 [2021-11-22 16:10:46,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:10:46,194 INFO L933 BasicCegarLoop]: 1935 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:10:46,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:10:46,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2021-11-22 16:10:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1835. [2021-11-22 16:10:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 909 states have (on average 2.1265126512651267) internal successors, (1933), 1834 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:46,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 1933 transitions. [2021-11-22 16:10:46,346 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 1933 transitions. Word has length 5 [2021-11-22 16:10:46,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:10:46,346 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 1933 transitions. [2021-11-22 16:10:46,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:46,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 1933 transitions. [2021-11-22 16:10:46,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 16:10:46,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:10:46,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 16:10:46,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-22 16:10:46,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:10:46,554 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:10:46,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:10:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 28698826, now seen corresponding path program 1 times [2021-11-22 16:10:46,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:10:46,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474639311] [2021-11-22 16:10:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:10:46,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:10:46,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:10:46,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:10:46,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 16:10:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:10:46,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 16:10:46,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:10:46,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:10:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:10:46,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:10:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:10:46,832 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:10:46,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474639311] [2021-11-22 16:10:46,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474639311] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:10:46,839 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:10:46,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 16:10:46,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104461256] [2021-11-22 16:10:46,846 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:10:46,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:10:46,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:10:46,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:10:46,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:10:46,848 INFO L87 Difference]: Start difference. First operand 1835 states and 1933 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:10:50,512 INFO L93 Difference]: Finished difference Result 2106 states and 2242 transitions. [2021-11-22 16:10:50,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:10:50,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-22 16:10:50,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:10:50,526 INFO L225 Difference]: With dead ends: 2106 [2021-11-22 16:10:50,526 INFO L226 Difference]: Without dead ends: 2106 [2021-11-22 16:10:50,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:10:50,528 INFO L933 BasicCegarLoop]: 1370 mSDtfsCounter, 1419 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-22 16:10:50,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 1826 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-22 16:10:50,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2021-11-22 16:10:50,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 1820. [2021-11-22 16:10:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 985 states have (on average 2.0071065989847714) internal successors, (1977), 1819 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:50,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 1977 transitions. [2021-11-22 16:10:50,598 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 1977 transitions. Word has length 5 [2021-11-22 16:10:50,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:10:50,598 INFO L470 AbstractCegarLoop]: Abstraction has 1820 states and 1977 transitions. [2021-11-22 16:10:50,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:50,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 1977 transitions. [2021-11-22 16:10:50,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 16:10:50,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:10:50,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-22 16:10:50,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-22 16:10:50,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:10:50,810 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:10:50,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:10:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash 28698827, now seen corresponding path program 1 times [2021-11-22 16:10:50,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:10:50,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631565947] [2021-11-22 16:10:50,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:10:50,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:10:50,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:10:50,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:10:50,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 16:10:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:10:50,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 16:10:50,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:10:50,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:10:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:10:51,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:10:51,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:10:51,071 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:10:51,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631565947] [2021-11-22 16:10:51,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631565947] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:10:51,072 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:10:51,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-22 16:10:51,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490881880] [2021-11-22 16:10:51,073 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:10:51,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:10:51,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:10:51,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:10:51,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:10:51,074 INFO L87 Difference]: Start difference. First operand 1820 states and 1977 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:58,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:10:58,894 INFO L93 Difference]: Finished difference Result 2409 states and 2612 transitions. [2021-11-22 16:10:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:10:58,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-22 16:10:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:10:58,907 INFO L225 Difference]: With dead ends: 2409 [2021-11-22 16:10:58,907 INFO L226 Difference]: Without dead ends: 2409 [2021-11-22 16:10:58,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:10:58,908 INFO L933 BasicCegarLoop]: 1710 mSDtfsCounter, 1616 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:10:58,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1616 Valid, 2543 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2021-11-22 16:10:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2021-11-22 16:10:58,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 1976. [2021-11-22 16:10:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1151 states have (on average 1.9834926151172894) internal successors, (2283), 1975 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2283 transitions. [2021-11-22 16:10:58,959 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2283 transitions. Word has length 5 [2021-11-22 16:10:58,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:10:58,959 INFO L470 AbstractCegarLoop]: Abstraction has 1976 states and 2283 transitions. [2021-11-22 16:10:58,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2283 transitions. [2021-11-22 16:10:58,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 16:10:58,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:10:58,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 16:10:58,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-22 16:10:59,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:10:59,171 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:10:59,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:10:59,173 INFO L85 PathProgramCache]: Analyzing trace with hash 891404513, now seen corresponding path program 1 times [2021-11-22 16:10:59,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:10:59,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489661267] [2021-11-22 16:10:59,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:10:59,175 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:10:59,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:10:59,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:10:59,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 16:10:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:10:59,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 16:10:59,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:10:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:10:59,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:10:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:10:59,372 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:10:59,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489661267] [2021-11-22 16:10:59,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489661267] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:10:59,379 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:10:59,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 16:10:59,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091135276] [2021-11-22 16:10:59,380 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:10:59,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:10:59,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:10:59,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:10:59,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:10:59,382 INFO L87 Difference]: Start difference. First operand 1976 states and 2283 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:59,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:10:59,554 INFO L93 Difference]: Finished difference Result 3571 states and 4165 transitions. [2021-11-22 16:10:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:10:59,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-22 16:10:59,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:10:59,573 INFO L225 Difference]: With dead ends: 3571 [2021-11-22 16:10:59,574 INFO L226 Difference]: Without dead ends: 3571 [2021-11-22 16:10:59,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:10:59,577 INFO L933 BasicCegarLoop]: 1825 mSDtfsCounter, 4281 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 3646 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:10:59,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4281 Valid, 3646 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:10:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2021-11-22 16:10:59,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 2944. [2021-11-22 16:10:59,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2119 states have (on average 1.9627182633317604) internal successors, (4159), 2943 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:59,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 4159 transitions. [2021-11-22 16:10:59,660 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 4159 transitions. Word has length 6 [2021-11-22 16:10:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:10:59,660 INFO L470 AbstractCegarLoop]: Abstraction has 2944 states and 4159 transitions. [2021-11-22 16:10:59,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:10:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 4159 transitions. [2021-11-22 16:10:59,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 16:10:59,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:10:59,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:10:59,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 16:10:59,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:10:59,880 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:10:59,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:10:59,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2013913556, now seen corresponding path program 1 times [2021-11-22 16:10:59,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:10:59,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594354997] [2021-11-22 16:10:59,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:10:59,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:10:59,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:10:59,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:10:59,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 16:11:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:00,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 16:11:00,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:00,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:00,099 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:00,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594354997] [2021-11-22 16:11:00,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594354997] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:00,100 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:00,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 16:11:00,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536729292] [2021-11-22 16:11:00,100 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:00,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:11:00,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:00,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:11:00,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:11:00,102 INFO L87 Difference]: Start difference. First operand 2944 states and 4159 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:00,160 INFO L93 Difference]: Finished difference Result 2884 states and 4073 transitions. [2021-11-22 16:11:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:11:00,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 16:11:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:00,179 INFO L225 Difference]: With dead ends: 2884 [2021-11-22 16:11:00,179 INFO L226 Difference]: Without dead ends: 2884 [2021-11-22 16:11:00,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:11:00,181 INFO L933 BasicCegarLoop]: 1784 mSDtfsCounter, 1786 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 1798 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 [2021-11-22 16:11:00,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1786 Valid, 1798 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:11:00,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2021-11-22 16:11:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2884. [2021-11-22 16:11:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2884 states, 2083 states have (on average 1.955352856457033) internal successors, (4073), 2883 states have internal predecessors, (4073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2884 states to 2884 states and 4073 transitions. [2021-11-22 16:11:00,248 INFO L78 Accepts]: Start accepts. Automaton has 2884 states and 4073 transitions. Word has length 11 [2021-11-22 16:11:00,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:00,249 INFO L470 AbstractCegarLoop]: Abstraction has 2884 states and 4073 transitions. [2021-11-22 16:11:00,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:00,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2884 states and 4073 transitions. [2021-11-22 16:11:00,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 16:11:00,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:00,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:00,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:00,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:00,465 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:00,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:00,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1659327634, now seen corresponding path program 1 times [2021-11-22 16:11:00,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:00,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267658689] [2021-11-22 16:11:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:00,468 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:00,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:00,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:00,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-22 16:11:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:00,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 16:11:00,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:00,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:00,743 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:00,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267658689] [2021-11-22 16:11:00,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267658689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:00,743 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:00,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-22 16:11:00,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062434044] [2021-11-22 16:11:00,744 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:00,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:11:00,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:00,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:11:00,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:11:00,745 INFO L87 Difference]: Start difference. First operand 2884 states and 4073 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:00,860 INFO L93 Difference]: Finished difference Result 2856 states and 4017 transitions. [2021-11-22 16:11:00,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:11:00,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-22 16:11:00,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:00,877 INFO L225 Difference]: With dead ends: 2856 [2021-11-22 16:11:00,877 INFO L226 Difference]: Without dead ends: 2856 [2021-11-22 16:11:00,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:11:00,879 INFO L933 BasicCegarLoop]: 1739 mSDtfsCounter, 3504 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:11:00,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3504 Valid, 3478 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:11:00,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-11-22 16:11:00,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2854. [2021-11-22 16:11:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2067 states have (on average 1.942428640541848) internal successors, (4015), 2853 states have internal predecessors, (4015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:00,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 4015 transitions. [2021-11-22 16:11:00,944 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 4015 transitions. Word has length 13 [2021-11-22 16:11:00,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:00,945 INFO L470 AbstractCegarLoop]: Abstraction has 2854 states and 4015 transitions. [2021-11-22 16:11:00,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:00,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 4015 transitions. [2021-11-22 16:11:00,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 16:11:00,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:00,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:00,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:01,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:01,160 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:01,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:01,160 INFO L85 PathProgramCache]: Analyzing trace with hash 913198236, now seen corresponding path program 1 times [2021-11-22 16:11:01,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:01,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892507386] [2021-11-22 16:11:01,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:01,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:01,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:01,162 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:01,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-22 16:11:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:01,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 16:11:01,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:01,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:11:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:01,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:01,517 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:01,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892507386] [2021-11-22 16:11:01,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892507386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:01,518 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:01,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 16:11:01,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704977668] [2021-11-22 16:11:01,519 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:01,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:11:01,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:01,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:11:01,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:11:01,520 INFO L87 Difference]: Start difference. First operand 2854 states and 4015 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:05,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:05,961 INFO L93 Difference]: Finished difference Result 4570 states and 6195 transitions. [2021-11-22 16:11:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:11:05,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-22 16:11:05,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:05,984 INFO L225 Difference]: With dead ends: 4570 [2021-11-22 16:11:05,984 INFO L226 Difference]: Without dead ends: 4570 [2021-11-22 16:11:05,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:11:05,986 INFO L933 BasicCegarLoop]: 1064 mSDtfsCounter, 3517 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3517 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:11:05,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3517 Valid, 2278 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-22 16:11:05,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-11-22 16:11:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 2850. [2021-11-22 16:11:06,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2067 states have (on average 1.938558297048863) internal successors, (4007), 2849 states have internal predecessors, (4007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:06,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 4007 transitions. [2021-11-22 16:11:06,086 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 4007 transitions. Word has length 27 [2021-11-22 16:11:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:06,086 INFO L470 AbstractCegarLoop]: Abstraction has 2850 states and 4007 transitions. [2021-11-22 16:11:06,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 4007 transitions. [2021-11-22 16:11:06,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 16:11:06,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:06,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:06,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:06,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:06,302 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:06,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:06,303 INFO L85 PathProgramCache]: Analyzing trace with hash 913198237, now seen corresponding path program 1 times [2021-11-22 16:11:06,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:06,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018602540] [2021-11-22 16:11:06,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:06,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:06,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:06,304 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:06,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-22 16:11:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:06,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 16:11:06,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:06,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:11:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:06,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:07,053 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:07,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018602540] [2021-11-22 16:11:07,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018602540] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:07,053 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:07,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 16:11:07,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350809695] [2021-11-22 16:11:07,054 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:07,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:11:07,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:07,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:11:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:11:07,055 INFO L87 Difference]: Start difference. First operand 2850 states and 4007 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:18,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:18,496 INFO L93 Difference]: Finished difference Result 3840 states and 5051 transitions. [2021-11-22 16:11:18,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:11:18,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-22 16:11:18,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:18,512 INFO L225 Difference]: With dead ends: 3840 [2021-11-22 16:11:18,512 INFO L226 Difference]: Without dead ends: 3840 [2021-11-22 16:11:18,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:11:18,513 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 2971 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 3046 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:11:18,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2971 Valid, 3687 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3046 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2021-11-22 16:11:18,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2021-11-22 16:11:18,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 2846. [2021-11-22 16:11:18,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2067 states have (on average 1.934687953555878) internal successors, (3999), 2845 states have internal predecessors, (3999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3999 transitions. [2021-11-22 16:11:18,573 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3999 transitions. Word has length 27 [2021-11-22 16:11:18,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:18,573 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 3999 transitions. [2021-11-22 16:11:18,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:18,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3999 transitions. [2021-11-22 16:11:18,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-22 16:11:18,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:18,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:18,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:18,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:18,790 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:18,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:18,790 INFO L85 PathProgramCache]: Analyzing trace with hash 944973104, now seen corresponding path program 1 times [2021-11-22 16:11:18,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:18,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508638772] [2021-11-22 16:11:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:18,791 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:18,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:18,792 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:18,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-22 16:11:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:18,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 16:11:18,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:19,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:19,175 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:19,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508638772] [2021-11-22 16:11:19,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508638772] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:19,176 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:19,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-22 16:11:19,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557058848] [2021-11-22 16:11:19,176 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:19,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:11:19,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:19,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:11:19,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:11:19,178 INFO L87 Difference]: Start difference. First operand 2846 states and 3999 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:19,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:19,276 INFO L93 Difference]: Finished difference Result 2834 states and 3979 transitions. [2021-11-22 16:11:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:11:19,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-22 16:11:19,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:19,295 INFO L225 Difference]: With dead ends: 2834 [2021-11-22 16:11:19,295 INFO L226 Difference]: Without dead ends: 2834 [2021-11-22 16:11:19,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:11:19,296 INFO L933 BasicCegarLoop]: 1733 mSDtfsCounter, 1733 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 3456 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:11:19,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1733 Valid, 3456 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:11:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2021-11-22 16:11:19,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2834. [2021-11-22 16:11:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2055 states have (on average 1.9362530413625305) internal successors, (3979), 2833 states have internal predecessors, (3979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3979 transitions. [2021-11-22 16:11:19,349 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3979 transitions. Word has length 42 [2021-11-22 16:11:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:19,351 INFO L470 AbstractCegarLoop]: Abstraction has 2834 states and 3979 transitions. [2021-11-22 16:11:19,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3979 transitions. [2021-11-22 16:11:19,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 16:11:19,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:19,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:19,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:19,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:19,569 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:19,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:19,569 INFO L85 PathProgramCache]: Analyzing trace with hash 29098340, now seen corresponding path program 1 times [2021-11-22 16:11:19,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:19,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397362] [2021-11-22 16:11:19,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:19,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:19,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:19,571 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:19,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-22 16:11:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:19,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 16:11:19,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:20,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:20,399 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:20,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397362] [2021-11-22 16:11:20,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397362] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:20,399 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:20,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 16:11:20,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660278835] [2021-11-22 16:11:20,399 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:20,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:11:20,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:11:20,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:11:20,401 INFO L87 Difference]: Start difference. First operand 2834 states and 3979 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:20,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:20,633 INFO L93 Difference]: Finished difference Result 3023 states and 4014 transitions. [2021-11-22 16:11:20,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:11:20,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-22 16:11:20,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:20,642 INFO L225 Difference]: With dead ends: 3023 [2021-11-22 16:11:20,643 INFO L226 Difference]: Without dead ends: 3023 [2021-11-22 16:11:20,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:11:20,644 INFO L933 BasicCegarLoop]: 1811 mSDtfsCounter, 465 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:11:20,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 3410 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 16:11:20,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2021-11-22 16:11:20,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 2650. [2021-11-22 16:11:20,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 1871 states have (on average 1.936932121859968) internal successors, (3624), 2649 states have internal predecessors, (3624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:20,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3624 transitions. [2021-11-22 16:11:20,688 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3624 transitions. Word has length 50 [2021-11-22 16:11:20,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:20,688 INFO L470 AbstractCegarLoop]: Abstraction has 2650 states and 3624 transitions. [2021-11-22 16:11:20,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3624 transitions. [2021-11-22 16:11:20,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-22 16:11:20,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:20,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:20,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:20,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:20,902 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:20,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:20,903 INFO L85 PathProgramCache]: Analyzing trace with hash -839399161, now seen corresponding path program 1 times [2021-11-22 16:11:20,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:20,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570746198] [2021-11-22 16:11:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:20,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:20,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:20,905 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:20,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-22 16:11:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:21,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 16:11:21,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:21,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:11:21,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:11:21,824 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 16:11:21,825 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 [2021-11-22 16:11:21,835 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-22 16:11:21,836 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 [2021-11-22 16:11:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:21,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:26,414 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:26,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570746198] [2021-11-22 16:11:26,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570746198] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:26,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:26,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 16:11:26,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611357885] [2021-11-22 16:11:26,415 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:26,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:11:26,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:26,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:11:26,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-22 16:11:26,417 INFO L87 Difference]: Start difference. First operand 2650 states and 3624 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:36,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:36,834 INFO L93 Difference]: Finished difference Result 4100 states and 5290 transitions. [2021-11-22 16:11:36,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:11:36,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-22 16:11:36,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:36,843 INFO L225 Difference]: With dead ends: 4100 [2021-11-22 16:11:36,843 INFO L226 Difference]: Without dead ends: 4100 [2021-11-22 16:11:36,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-22 16:11:36,844 INFO L933 BasicCegarLoop]: 1453 mSDtfsCounter, 2000 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 4057 SdHoareTripleChecker+Invalid, 5632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2759 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:11:36,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2000 Valid, 4057 Invalid, 5632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2798 Invalid, 0 Unknown, 2759 Unchecked, 10.3s Time] [2021-11-22 16:11:36,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2021-11-22 16:11:36,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 2754. [2021-11-22 16:11:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2754 states, 2007 states have (on average 1.8973592426507224) internal successors, (3808), 2753 states have internal predecessors, (3808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:36,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3808 transitions. [2021-11-22 16:11:36,891 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3808 transitions. Word has length 53 [2021-11-22 16:11:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:36,892 INFO L470 AbstractCegarLoop]: Abstraction has 2754 states and 3808 transitions. [2021-11-22 16:11:36,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:36,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3808 transitions. [2021-11-22 16:11:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-22 16:11:36,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:36,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:36,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:37,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:37,111 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:37,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:37,111 INFO L85 PathProgramCache]: Analyzing trace with hash 791264744, now seen corresponding path program 1 times [2021-11-22 16:11:37,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:37,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552030475] [2021-11-22 16:11:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:37,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:37,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:37,113 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:37,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-22 16:11:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:37,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 16:11:37,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:37,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:37,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-22 16:11:37,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:37,829 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:37,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552030475] [2021-11-22 16:11:37,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552030475] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:37,829 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:37,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 16:11:37,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537268159] [2021-11-22 16:11:37,830 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:37,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:11:37,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:37,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:11:37,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:11:37,831 INFO L87 Difference]: Start difference. First operand 2754 states and 3808 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:40,261 INFO L93 Difference]: Finished difference Result 2752 states and 3804 transitions. [2021-11-22 16:11:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:11:40,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-22 16:11:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:40,268 INFO L225 Difference]: With dead ends: 2752 [2021-11-22 16:11:40,268 INFO L226 Difference]: Without dead ends: 2752 [2021-11-22 16:11:40,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:11:40,269 INFO L933 BasicCegarLoop]: 1080 mSDtfsCounter, 2524 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2524 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:11:40,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2524 Valid, 1876 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-22 16:11:40,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-11-22 16:11:40,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2752. [2021-11-22 16:11:40,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2007 states have (on average 1.8953662182361735) internal successors, (3804), 2751 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:40,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3804 transitions. [2021-11-22 16:11:40,319 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3804 transitions. Word has length 55 [2021-11-22 16:11:40,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:40,320 INFO L470 AbstractCegarLoop]: Abstraction has 2752 states and 3804 transitions. [2021-11-22 16:11:40,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:40,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3804 transitions. [2021-11-22 16:11:40,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 16:11:40,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:40,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:40,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:40,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:40,531 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:40,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:40,532 INFO L85 PathProgramCache]: Analyzing trace with hash -416260760, now seen corresponding path program 1 times [2021-11-22 16:11:40,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:40,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526936086] [2021-11-22 16:11:40,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:40,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:40,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:40,534 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:40,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-22 16:11:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:40,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 16:11:40,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:40,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:11:40,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-22 16:11:40,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-22 16:11:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:40,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:41,021 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:41,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526936086] [2021-11-22 16:11:41,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526936086] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:41,021 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:41,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-22 16:11:41,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984238502] [2021-11-22 16:11:41,021 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:41,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:11:41,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:41,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:11:41,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:11:41,023 INFO L87 Difference]: Start difference. First operand 2752 states and 3804 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:49,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:11:49,324 INFO L93 Difference]: Finished difference Result 4117 states and 5504 transitions. [2021-11-22 16:11:49,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 16:11:49,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-22 16:11:49,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:11:49,332 INFO L225 Difference]: With dead ends: 4117 [2021-11-22 16:11:49,332 INFO L226 Difference]: Without dead ends: 4117 [2021-11-22 16:11:49,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-22 16:11:49,333 INFO L933 BasicCegarLoop]: 1219 mSDtfsCounter, 1547 mSDsluCounter, 3670 mSDsCounter, 0 mSdLazyCounter, 4156 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4889 SdHoareTripleChecker+Invalid, 4178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:11:49,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4889 Invalid, 4178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 4156 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-22 16:11:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-11-22 16:11:49,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 2751. [2021-11-22 16:11:49,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2007 states have (on average 1.8943697060288989) internal successors, (3802), 2750 states have internal predecessors, (3802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 3802 transitions. [2021-11-22 16:11:49,378 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 3802 transitions. Word has length 59 [2021-11-22 16:11:49,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:11:49,379 INFO L470 AbstractCegarLoop]: Abstraction has 2751 states and 3802 transitions. [2021-11-22 16:11:49,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:11:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 3802 transitions. [2021-11-22 16:11:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 16:11:49,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:11:49,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:11:49,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:49,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:49,593 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:11:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:11:49,594 INFO L85 PathProgramCache]: Analyzing trace with hash -19181353, now seen corresponding path program 1 times [2021-11-22 16:11:49,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:11:49,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415509740] [2021-11-22 16:11:49,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:11:49,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:11:49,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:11:49,596 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:11:49,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-22 16:11:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:11:49,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 16:11:49,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:11:49,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:11:49,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-22 16:11:49,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-22 16:11:50,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-22 16:11:50,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-22 16:11:50,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:50,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:11:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:11:50,451 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:11:50,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415509740] [2021-11-22 16:11:50,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415509740] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:11:50,451 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:11:50,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-22 16:11:50,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143830429] [2021-11-22 16:11:50,451 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:11:50,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 16:11:50,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:11:50,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 16:11:50,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:11:50,452 INFO L87 Difference]: Start difference. First operand 2751 states and 3802 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:21,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:12:21,461 INFO L93 Difference]: Finished difference Result 3682 states and 4799 transitions. [2021-11-22 16:12:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 16:12:21,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-22 16:12:21,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:12:21,471 INFO L225 Difference]: With dead ends: 3682 [2021-11-22 16:12:21,471 INFO L226 Difference]: Without dead ends: 3682 [2021-11-22 16:12:21,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-22 16:12:21,472 INFO L933 BasicCegarLoop]: 1618 mSDtfsCounter, 1538 mSDsluCounter, 5567 mSDsCounter, 0 mSdLazyCounter, 5764 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 7185 SdHoareTripleChecker+Invalid, 5778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 5764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:12:21,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1538 Valid, 7185 Invalid, 5778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 5764 Invalid, 0 Unknown, 0 Unchecked, 30.7s Time] [2021-11-22 16:12:21,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2021-11-22 16:12:21,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 2750. [2021-11-22 16:12:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2007 states have (on average 1.8933731938216243) internal successors, (3800), 2749 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3800 transitions. [2021-11-22 16:12:21,534 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3800 transitions. Word has length 60 [2021-11-22 16:12:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:12:21,535 INFO L470 AbstractCegarLoop]: Abstraction has 2750 states and 3800 transitions. [2021-11-22 16:12:21,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3800 transitions. [2021-11-22 16:12:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-22 16:12:21,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:12:21,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:12:21,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-22 16:12:21,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:12:21,756 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:12:21,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:12:21,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1927168386, now seen corresponding path program 1 times [2021-11-22 16:12:21,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:12:21,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592538861] [2021-11-22 16:12:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:12:21,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:12:21,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:12:21,762 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:12:21,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-22 16:12:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:12:22,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 16:12:22,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:12:22,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:12:22,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:12:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:12:22,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:12:22,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592538861] [2021-11-22 16:12:22,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592538861] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:12:22,283 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:12:22,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 16:12:22,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526769819] [2021-11-22 16:12:22,284 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:12:22,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:12:22,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:12:22,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:12:22,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:12:22,285 INFO L87 Difference]: Start difference. First operand 2750 states and 3800 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:12:22,603 INFO L93 Difference]: Finished difference Result 4974 states and 6778 transitions. [2021-11-22 16:12:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 16:12:22,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-22 16:12:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:12:22,613 INFO L225 Difference]: With dead ends: 4974 [2021-11-22 16:12:22,614 INFO L226 Difference]: Without dead ends: 4974 [2021-11-22 16:12:22,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:12:22,617 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 1687 mSDsluCounter, 5396 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 7566 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:12:22,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1687 Valid, 7566 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 16:12:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4974 states. [2021-11-22 16:12:22,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4974 to 2765. [2021-11-22 16:12:22,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 2022 states have (on average 1.8867457962413452) internal successors, (3815), 2764 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:22,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 3815 transitions. [2021-11-22 16:12:22,685 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 3815 transitions. Word has length 64 [2021-11-22 16:12:22,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:12:22,686 INFO L470 AbstractCegarLoop]: Abstraction has 2765 states and 3815 transitions. [2021-11-22 16:12:22,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:22,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 3815 transitions. [2021-11-22 16:12:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 16:12:22,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:12:22,688 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:12:22,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-22 16:12:22,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:12:22,902 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:12:22,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:12:22,903 INFO L85 PathProgramCache]: Analyzing trace with hash -938951394, now seen corresponding path program 1 times [2021-11-22 16:12:22,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:12:22,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208325229] [2021-11-22 16:12:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:12:22,904 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:12:22,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:12:22,905 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:12:22,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-22 16:12:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:12:23,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 16:12:23,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:12:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:12:23,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:12:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:12:23,451 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:12:23,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208325229] [2021-11-22 16:12:23,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208325229] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:12:23,451 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:12:23,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-22 16:12:23,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559172812] [2021-11-22 16:12:23,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 16:12:23,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 16:12:23,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:12:23,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 16:12:23,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:12:23,452 INFO L87 Difference]: Start difference. First operand 2765 states and 3815 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:24,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:12:24,197 INFO L93 Difference]: Finished difference Result 4170 states and 5550 transitions. [2021-11-22 16:12:24,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 16:12:24,198 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-22 16:12:24,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:12:24,206 INFO L225 Difference]: With dead ends: 4170 [2021-11-22 16:12:24,206 INFO L226 Difference]: Without dead ends: 4170 [2021-11-22 16:12:24,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2021-11-22 16:12:24,208 INFO L933 BasicCegarLoop]: 1747 mSDtfsCounter, 1261 mSDsluCounter, 8405 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 10152 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:12:24,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 10152 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 16:12:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2021-11-22 16:12:24,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 2795. [2021-11-22 16:12:24,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 2052 states have (on average 1.8737816764132553) internal successors, (3845), 2794 states have internal predecessors, (3845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 3845 transitions. [2021-11-22 16:12:24,265 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 3845 transitions. Word has length 66 [2021-11-22 16:12:24,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:12:24,265 INFO L470 AbstractCegarLoop]: Abstraction has 2795 states and 3845 transitions. [2021-11-22 16:12:24,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:24,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 3845 transitions. [2021-11-22 16:12:24,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-22 16:12:24,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:12:24,267 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:12:24,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-22 16:12:24,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:12:24,482 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:12:24,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:12:24,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1093747294, now seen corresponding path program 2 times [2021-11-22 16:12:24,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:12:24,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774276622] [2021-11-22 16:12:24,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 16:12:24,483 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:12:24,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:12:24,484 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:12:24,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-22 16:12:24,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 16:12:24,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 16:12:24,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 16:12:24,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:12:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:12:25,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:12:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:12:26,164 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:12:26,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774276622] [2021-11-22 16:12:26,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774276622] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:12:26,164 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:12:26,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-22 16:12:26,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917557695] [2021-11-22 16:12:26,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 16:12:26,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-22 16:12:26,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:12:26,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-22 16:12:26,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-22 16:12:26,166 INFO L87 Difference]: Start difference. First operand 2795 states and 3845 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:34,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:12:34,384 INFO L93 Difference]: Finished difference Result 11969 states and 16274 transitions. [2021-11-22 16:12:34,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-22 16:12:34,386 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-22 16:12:34,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:12:34,395 INFO L225 Difference]: With dead ends: 11969 [2021-11-22 16:12:34,395 INFO L226 Difference]: Without dead ends: 11969 [2021-11-22 16:12:34,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=454, Invalid=952, Unknown=0, NotChecked=0, Total=1406 [2021-11-22 16:12:34,397 INFO L933 BasicCegarLoop]: 6443 mSDtfsCounter, 20216 mSDsluCounter, 46151 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20216 SdHoareTripleChecker+Valid, 52594 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:12:34,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20216 Valid, 52594 Invalid, 968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [219 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-22 16:12:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11969 states. [2021-11-22 16:12:34,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11969 to 2890. [2021-11-22 16:12:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2147 states have (on average 1.856078248719143) internal successors, (3985), 2889 states have internal predecessors, (3985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:34,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 3985 transitions. [2021-11-22 16:12:34,480 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 3985 transitions. Word has length 70 [2021-11-22 16:12:34,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:12:34,480 INFO L470 AbstractCegarLoop]: Abstraction has 2890 states and 3985 transitions. [2021-11-22 16:12:34,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:12:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 3985 transitions. [2021-11-22 16:12:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-22 16:12:34,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:12:34,482 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:12:34,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-22 16:12:34,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:12:34,699 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:12:34,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:12:34,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1408996130, now seen corresponding path program 3 times [2021-11-22 16:12:34,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:12:34,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910103081] [2021-11-22 16:12:34,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 16:12:34,701 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:12:34,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:12:34,702 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:12:34,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-22 16:12:35,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-22 16:12:35,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 16:12:35,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 16:12:35,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:12:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:12:36,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:12:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:12:37,687 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:12:37,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910103081] [2021-11-22 16:12:37,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910103081] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:12:37,688 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:12:37,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-22 16:12:37,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008063088] [2021-11-22 16:12:37,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 16:12:37,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-22 16:12:37,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:12:37,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-22 16:12:37,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-22 16:12:37,691 INFO L87 Difference]: Start difference. First operand 2890 states and 3985 transitions. Second operand has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:13:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:13:02,022 INFO L93 Difference]: Finished difference Result 31865 states and 43944 transitions. [2021-11-22 16:13:02,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-22 16:13:02,023 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-22 16:13:02,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:13:02,059 INFO L225 Difference]: With dead ends: 31865 [2021-11-22 16:13:02,059 INFO L226 Difference]: Without dead ends: 31865 [2021-11-22 16:13:02,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1644, Invalid=4208, Unknown=0, NotChecked=0, Total=5852 [2021-11-22 16:13:02,062 INFO L933 BasicCegarLoop]: 19067 mSDtfsCounter, 54351 mSDsluCounter, 284260 mSDsCounter, 0 mSdLazyCounter, 3281 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54351 SdHoareTripleChecker+Valid, 303327 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 3281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:13:02,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54351 Valid, 303327 Invalid, 3875 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [594 Valid, 3281 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2021-11-22 16:13:02,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31865 states. [2021-11-22 16:13:02,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31865 to 3050. [2021-11-22 16:13:02,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3050 states, 2307 states have (on average 1.8270481144343302) internal successors, (4215), 3049 states have internal predecessors, (4215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:13:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 4215 transitions. [2021-11-22 16:13:02,293 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 4215 transitions. Word has length 78 [2021-11-22 16:13:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:13:02,294 INFO L470 AbstractCegarLoop]: Abstraction has 3050 states and 4215 transitions. [2021-11-22 16:13:02,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:13:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 4215 transitions. [2021-11-22 16:13:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 16:13:02,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:13:02,296 INFO L514 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:13:02,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-22 16:13:02,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:13:02,515 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:13:02,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:13:02,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2005712418, now seen corresponding path program 4 times [2021-11-22 16:13:02,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:13:02,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444583441] [2021-11-22 16:13:02,516 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 16:13:02,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:13:02,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:13:02,518 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:13:02,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-22 16:13:02,814 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 16:13:02,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 16:13:02,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-22 16:13:02,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:13:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:13:04,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:13:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:13:07,626 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:13:07,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444583441] [2021-11-22 16:13:07,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444583441] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:13:07,626 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:13:07,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-22 16:13:07,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748439602] [2021-11-22 16:13:07,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 16:13:07,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-22 16:13:07,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:13:07,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-22 16:13:07,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-22 16:13:07,632 INFO L87 Difference]: Start difference. First operand 3050 states and 4215 transitions. Second operand has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:15:40,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:15:40,547 INFO L93 Difference]: Finished difference Result 4575 states and 6020 transitions. [2021-11-22 16:15:40,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-22 16:15:40,548 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-22 16:15:40,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:15:40,552 INFO L225 Difference]: With dead ends: 4575 [2021-11-22 16:15:40,552 INFO L226 Difference]: Without dead ends: 4575 [2021-11-22 16:15:40,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3304 ImplicationChecksByTransitivity, 32.7s TimeCoverageRelationStatistics Valid=3577, Invalid=8413, Unknown=0, NotChecked=0, Total=11990 [2021-11-22 16:15:40,556 INFO L933 BasicCegarLoop]: 1747 mSDtfsCounter, 1361 mSDsluCounter, 59881 mSDsCounter, 0 mSdLazyCounter, 2671 mSolverCounterSat, 1830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 61628 SdHoareTripleChecker+Invalid, 4501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1830 IncrementalHoareTripleChecker+Valid, 2671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 123.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:15:40,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1361 Valid, 61628 Invalid, 4501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1830 Valid, 2671 Invalid, 0 Unknown, 0 Unchecked, 123.8s Time] [2021-11-22 16:15:40,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2021-11-22 16:15:40,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 3200. [2021-11-22 16:15:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 2457 states have (on average 1.7562067562067563) internal successors, (4315), 3199 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:15:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 4315 transitions. [2021-11-22 16:15:40,609 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 4315 transitions. Word has length 94 [2021-11-22 16:15:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:15:40,609 INFO L470 AbstractCegarLoop]: Abstraction has 3200 states and 4315 transitions. [2021-11-22 16:15:40,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:15:40,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 4315 transitions. [2021-11-22 16:15:40,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 16:15:40,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:15:40,611 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:15:40,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-22 16:15:40,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:15:40,826 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:15:40,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:15:40,826 INFO L85 PathProgramCache]: Analyzing trace with hash -12810178, now seen corresponding path program 5 times [2021-11-22 16:15:40,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:15:40,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237023069] [2021-11-22 16:15:40,827 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 16:15:40,827 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:15:40,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:15:40,828 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:15:40,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-22 16:15:42,123 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-22 16:15:42,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 16:15:42,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-22 16:15:42,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:15:42,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:15:42,374 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-22 16:15:42,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 27 [2021-11-22 16:15:42,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-22 16:15:42,685 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 16:15:42,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 36 [2021-11-22 16:15:42,846 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:42,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:15:42,979 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:42,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2021-11-22 16:15:43,108 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:43,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:15:43,241 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:43,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:15:43,373 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:43,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:15:43,501 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:43,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2021-11-22 16:15:45,558 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:45,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:15:48,153 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:48,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:15:48,278 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:48,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:15:48,404 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:48,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:15:52,137 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:52,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:15:52,262 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:52,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:15:56,388 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:56,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:15:56,510 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:56,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:15:58,193 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:15:58,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:02,021 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:02,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:02,155 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:02,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:16:05,055 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:05,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:05,199 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:05,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 52 [2021-11-22 16:16:06,642 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:06,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:16:06,766 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:06,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:16:08,971 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:08,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:09,114 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:09,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:16:09,242 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:09,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:10,567 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:10,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:14,488 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:14,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2021-11-22 16:16:14,630 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:14,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:16,964 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:16,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:17,147 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:17,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:16:18,592 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:18,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:16:18,725 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:18,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:21,210 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:21,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:23,111 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:23,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 50 [2021-11-22 16:16:23,241 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:23,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:23,387 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:23,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:23,531 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:23,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:23,667 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:23,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:24,767 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:24,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:26,092 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:26,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:27,037 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:27,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:27,187 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:27,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 51 [2021-11-22 16:16:27,325 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:27,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2021-11-22 16:16:27,460 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:16:27,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 51 [2021-11-22 16:16:27,693 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 16:16:27,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 37 [2021-11-22 16:16:27,734 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-22 16:16:27,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:16:33,934 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_186| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_186| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))) (_ bv1 1)))) is different from false [2021-11-22 16:17:38,592 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_210| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_210| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))))))) (_ bv1 1)))) is different from false [2021-11-22 16:17:58,122 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_218| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_218| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))))) (_ bv1 1)))) is different from false [2021-11-22 16:18:48,737 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_236| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_236| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))))) (_ bv1 1)))) is different from false [2021-11-22 16:19:30,006 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_256| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_256| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) (_ bv1 1)))) is different from false [2021-11-22 16:19:35,979 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_260| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_260| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))))))) is different from false [2021-11-22 16:19:40,834 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_264| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1_264| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))) (_ bv1 1)))) is different from false [2021-11-22 16:20:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 151 proven. 37 refuted. 193 times theorem prover too weak. 322 trivial. 287 not checked. [2021-11-22 16:20:13,953 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:20:13,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237023069] [2021-11-22 16:20:13,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237023069] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:20:13,954 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:20:13,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17] total 25 [2021-11-22 16:20:13,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033641687] [2021-11-22 16:20:13,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 16:20:13,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-22 16:20:13,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:20:13,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-22 16:20:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=260, Unknown=17, NotChecked=280, Total=650 [2021-11-22 16:20:13,957 INFO L87 Difference]: Start difference. First operand 3200 states and 4315 transitions. Second operand has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:33,154 INFO L93 Difference]: Finished difference Result 3625 states and 4834 transitions. [2021-11-22 16:20:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 16:20:33,154 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-22 16:20:33,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:33,158 INFO L225 Difference]: With dead ends: 3625 [2021-11-22 16:20:33,158 INFO L226 Difference]: Without dead ends: 3625 [2021-11-22 16:20:33,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 114 SyntacticMatches, 78 SemanticMatches, 26 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 235.7s TimeCoverageRelationStatistics Valid=114, Invalid=317, Unknown=17, NotChecked=308, Total=756 [2021-11-22 16:20:33,160 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 1246 mSDsluCounter, 9141 mSDsCounter, 0 mSdLazyCounter, 3464 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 10198 SdHoareTripleChecker+Invalid, 17985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14505 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:33,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 10198 Invalid, 17985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3464 Invalid, 0 Unknown, 14505 Unchecked, 9.5s Time] [2021-11-22 16:20:33,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3625 states. [2021-11-22 16:20:33,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3625 to 3199. [2021-11-22 16:20:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 2457 states have (on average 1.7553927553927553) internal successors, (4313), 3198 states have internal predecessors, (4313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:33,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 4313 transitions. [2021-11-22 16:20:33,204 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 4313 transitions. Word has length 108 [2021-11-22 16:20:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:33,205 INFO L470 AbstractCegarLoop]: Abstraction has 3199 states and 4313 transitions. [2021-11-22 16:20:33,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:20:33,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 4313 transitions. [2021-11-22 16:20:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-22 16:20:33,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:33,207 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:20:33,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-22 16:20:33,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:20:33,428 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 932 more)] === [2021-11-22 16:20:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash -12810177, now seen corresponding path program 1 times [2021-11-22 16:20:33,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:20:33,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848367910] [2021-11-22 16:20:33,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:33,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:20:33,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:20:33,431 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:20:33,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7d2e6c-66c5-4a04-baf8-c456bb0ce721/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-22 16:20:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:34,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-22 16:20:34,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:20:34,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:20:34,360 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 16:20:34,361 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 15 treesize of output 15 [2021-11-22 16:20:34,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-22 16:20:34,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-22 16:20:34,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-22 16:20:34,807 INFO L354 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2021-11-22 16:20:34,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 67 [2021-11-22 16:20:34,847 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 16:20:34,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 51 [2021-11-22 16:20:37,679 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:37,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:37,774 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:37,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:38,832 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:38,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:39,482 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:39,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:41,201 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:41,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:41,262 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:41,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:44,248 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:44,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:44,313 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:44,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:44,505 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:44,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:45,285 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:45,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:45,505 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:45,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:45,570 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:45,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:46,861 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:46,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:47,790 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:47,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:47,988 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:47,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:48,077 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:48,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:53,362 WARN L227 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 40 DAG size of output: 18 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-22 16:20:53,363 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:53,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:53,436 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:53,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:53,613 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:53,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:55,075 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:55,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:55,327 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:55,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:56,109 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:56,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:56,310 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:56,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:20:56,374 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:20:56,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:20:58,206 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:20:58,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:00,284 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:00,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:03,951 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:03,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:05,320 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:05,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:07,234 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:07,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:09,552 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:09,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:11,573 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:11,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:11,647 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:11,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:13,592 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:13,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:17,013 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:17,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:17,260 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:17,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:17,355 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:17,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:19,961 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:19,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:21,513 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:21,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:26,770 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 40 DAG size of output: 22 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-22 16:21:26,770 INFO L354 Elim1Store]: treesize reduction 76, result has 23.2 percent of original size [2021-11-22 16:21:26,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 94 [2021-11-22 16:21:30,799 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:30,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 78 [2021-11-22 16:21:31,606 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:31,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:32,633 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:32,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:32,823 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:32,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:34,687 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:34,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:36,276 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:36,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:37,246 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:37,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:40,578 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:40,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:40,637 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:40,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:41,756 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:41,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:41,812 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:41,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:41,978 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:41,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:42,033 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:42,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:42,198 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:42,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:42,254 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:42,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:42,426 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:42,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:43,651 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:43,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:43,849 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:43,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:43,907 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:43,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:44,085 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:44,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:44,147 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:44,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:45,067 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:45,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:45,124 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:45,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:46,836 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:46,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:46,899 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:46,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:47,092 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:47,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:47,147 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:47,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:47,936 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:47,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:47,995 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:47,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:48,165 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:48,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:49,448 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:49,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:54,868 WARN L227 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 40 DAG size of output: 18 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-22 16:21:54,869 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:54,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:54,935 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:54,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:56,880 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:56,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:56,939 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:56,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:57,114 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:57,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:57,173 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:57,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:57,427 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:57,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:57,519 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:57,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:21:57,719 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:21:57,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:21:58,341 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:21:58,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:22:01,327 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:22:01,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:22:02,101 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:22:02,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:22:02,278 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-22 16:22:02,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-22 16:22:02,338 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:22:02,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-22 16:22:02,519 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 16:22:02,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 78 [2021-11-22 16:22:02,576 INFO L354 Elim1Store]: treesize reduction 104, result has 19.4 percent of original size [2021-11-22 16:22:02,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 101 [2021-11-22 16:22:03,159 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 16:22:03,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 62 [2021-11-22 16:22:03,173 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 16:22:03,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 26 [2021-11-22 16:22:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-22 16:22:03,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:22:23,767 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (v_subst_6 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_6 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (v_subst_5 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_5 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 16:23:18,307 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (v_subst_27 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_27 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (v_subst_28 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_28 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 16:23:49,190 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (v_subst_45 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_45 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| (_ BitVec 32)) (v_subst_46 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr403#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_46 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false