./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/list-ext_flag_1.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_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/list-ext_flag_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e6ddc72db9996307e31b37c1f23ddad101cfdc849bb3a24fd3b76db809c7055 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:08:05,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:08:05,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:08:05,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:08:05,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:08:05,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:08:05,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:08:05,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:08:05,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:08:05,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:08:05,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:08:05,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:08:05,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:08:05,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:08:05,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:08:05,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:08:05,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:08:05,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:08:05,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:08:05,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:08:05,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:08:05,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:08:05,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:08:05,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:08:05,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:08:05,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:08:05,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:08:05,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:08:05,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:08:05,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:08:05,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:08:05,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:08:05,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:08:05,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:08:05,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:08:05,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:08:05,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:08:05,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:08:05,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:08:05,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:08:05,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:08:05,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 02:08:05,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:08:05,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:08:05,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:08:05,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:08:05,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:08:05,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:08:05,599 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:08:05,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:08:05,600 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:08:05,600 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:08:05,600 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:08:05,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:08:05,601 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:08:05,601 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:08:05,601 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:08:05,601 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:08:05,602 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:08:05,602 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:08:05,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:08:05,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:08:05,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:08:05,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:08:05,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 02:08:05,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:08:05,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:08:05,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:08:05,604 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 02:08:05,605 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 02:08:05,605 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 02:08:05,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:08:05,605 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 02:08:05,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:08:05,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:08:05,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:08:05,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:08:05,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:08:05,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:08:05,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:08:05,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:08:05,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:08:05,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:08:05,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:08:05,608 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e6ddc72db9996307e31b37c1f23ddad101cfdc849bb3a24fd3b76db809c7055 [2021-11-23 02:08:05,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:08:05,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:08:05,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:08:05,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:08:05,864 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:08:05,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/list-ext-properties/list-ext_flag_1.i [2021-11-23 02:08:05,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/data/615dd48d6/24d33e456acd43a8b17cdef3cac0380c/FLAG43758c825 [2021-11-23 02:08:06,489 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:08:06,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/sv-benchmarks/c/list-ext-properties/list-ext_flag_1.i [2021-11-23 02:08:06,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/data/615dd48d6/24d33e456acd43a8b17cdef3cac0380c/FLAG43758c825 [2021-11-23 02:08:06,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/data/615dd48d6/24d33e456acd43a8b17cdef3cac0380c [2021-11-23 02:08:06,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:08:06,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:08:06,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:08:06,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:08:06,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:08:06,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:06" (1/1) ... [2021-11-23 02:08:06,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f1c60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:06, skipping insertion in model container [2021-11-23 02:08:06,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:06" (1/1) ... [2021-11-23 02:08:06,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:08:06,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:08:07,180 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_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/sv-benchmarks/c/list-ext-properties/list-ext_flag_1.i[23654,23667] [2021-11-23 02:08:07,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:08:07,200 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:08:07,268 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_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/sv-benchmarks/c/list-ext-properties/list-ext_flag_1.i[23654,23667] [2021-11-23 02:08:07,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:08:07,317 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:08:07,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07 WrapperNode [2021-11-23 02:08:07,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:08:07,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:08:07,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:08:07,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:08:07,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,393 INFO L137 Inliner]: procedures = 124, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 113 [2021-11-23 02:08:07,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:08:07,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:08:07,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:08:07,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:08:07,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:08:07,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:08:07,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:08:07,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:08:07,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (1/1) ... [2021-11-23 02:08:07,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:08:07,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:07,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:08:07,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:08:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 02:08:07,529 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 02:08:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:08:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:08:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:08:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:08:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:08:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:08:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:08:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:08:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:08:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:08:07,619 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:08:07,634 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:08:07,697 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-23 02:08:08,071 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:08:08,114 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:08:08,114 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 02:08:08,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:08 BoogieIcfgContainer [2021-11-23 02:08:08,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:08:08,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:08:08,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:08:08,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:08:08,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:08:06" (1/3) ... [2021-11-23 02:08:08,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9dc8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:08, skipping insertion in model container [2021-11-23 02:08:08,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:07" (2/3) ... [2021-11-23 02:08:08,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9dc8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:08, skipping insertion in model container [2021-11-23 02:08:08,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:08" (3/3) ... [2021-11-23 02:08:08,127 INFO L111 eAbstractionObserver]: Analyzing ICFG list-ext_flag_1.i [2021-11-23 02:08:08,133 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:08:08,134 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2021-11-23 02:08:08,174 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:08:08,184 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:08:08,185 INFO L340 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2021-11-23 02:08:08,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 40 states have (on average 2.325) internal successors, (93), 81 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:08,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 02:08:08,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:08,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 02:08:08,219 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:08,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:08,224 INFO L85 PathProgramCache]: Analyzing trace with hash 189725650, now seen corresponding path program 1 times [2021-11-23 02:08:08,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:08,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147932756] [2021-11-23 02:08:08,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:08,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:08,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:08,380 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:08,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147932756] [2021-11-23 02:08:08,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147932756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:08,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:08,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:08:08,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580800349] [2021-11-23 02:08:08,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:08,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:08:08,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:08,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:08:08,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:08:08,419 INFO L87 Difference]: Start difference. First operand has 83 states, 40 states have (on average 2.325) internal successors, (93), 81 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 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) [2021-11-23 02:08:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:08,465 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2021-11-23 02:08:08,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:08:08,472 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 [2021-11-23 02:08:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:08,483 INFO L225 Difference]: With dead ends: 83 [2021-11-23 02:08:08,483 INFO L226 Difference]: Without dead ends: 78 [2021-11-23 02:08:08,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:08:08,491 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:08,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:08:08,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-23 02:08:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-23 02:08:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 38 states have (on average 2.210526315789474) internal successors, (84), 77 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2021-11-23 02:08:08,544 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 5 [2021-11-23 02:08:08,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:08,545 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2021-11-23 02:08:08,545 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) [2021-11-23 02:08:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2021-11-23 02:08:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 02:08:08,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:08,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 02:08:08,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:08:08,546 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:08,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1586633324, now seen corresponding path program 1 times [2021-11-23 02:08:08,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:08,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589685487] [2021-11-23 02:08:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:08,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:08,605 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:08,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589685487] [2021-11-23 02:08:08,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589685487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:08,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:08,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:08:08,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554978476] [2021-11-23 02:08:08,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:08,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:08:08,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:08,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:08:08,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:08:08,609 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:08,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:08,773 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2021-11-23 02:08:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:08:08,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-23 02:08:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:08,776 INFO L225 Difference]: With dead ends: 87 [2021-11-23 02:08:08,776 INFO L226 Difference]: Without dead ends: 87 [2021-11-23 02:08:08,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:08:08,778 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 133 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:08,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 32 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:08:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-23 02:08:08,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 70. [2021-11-23 02:08:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 44 states have (on average 1.8409090909090908) internal successors, (81), 69 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-23 02:08:08,788 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 6 [2021-11-23 02:08:08,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:08,789 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-23 02:08:08,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:08,789 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-23 02:08:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 02:08:08,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:08,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 02:08:08,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:08:08,790 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:08,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:08,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1586633325, now seen corresponding path program 1 times [2021-11-23 02:08:08,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:08,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612584345] [2021-11-23 02:08:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:08,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:08,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:08,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612584345] [2021-11-23 02:08:08,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612584345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:08,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:08,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:08:08,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063946241] [2021-11-23 02:08:08,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:08,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:08:08,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:08,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:08:08,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:08:08,906 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:09,123 INFO L93 Difference]: Finished difference Result 103 states and 115 transitions. [2021-11-23 02:08:09,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:08:09,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-23 02:08:09,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:09,130 INFO L225 Difference]: With dead ends: 103 [2021-11-23 02:08:09,131 INFO L226 Difference]: Without dead ends: 103 [2021-11-23 02:08:09,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:08:09,138 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 143 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:09,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 42 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:08:09,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-23 02:08:09,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 92. [2021-11-23 02:08:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.5909090909090908) internal successors, (105), 91 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2021-11-23 02:08:09,160 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 6 [2021-11-23 02:08:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:09,162 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2021-11-23 02:08:09,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,162 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2021-11-23 02:08:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 02:08:09,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:09,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:09,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:08:09,164 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1451311346, now seen corresponding path program 1 times [2021-11-23 02:08:09,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:09,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699927331] [2021-11-23 02:08:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:09,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:09,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:09,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699927331] [2021-11-23 02:08:09,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699927331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:09,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:09,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:08:09,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667772920] [2021-11-23 02:08:09,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:09,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:08:09,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:09,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:08:09,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:08:09,254 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:09,371 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2021-11-23 02:08:09,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:08:09,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 02:08:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:09,373 INFO L225 Difference]: With dead ends: 118 [2021-11-23 02:08:09,373 INFO L226 Difference]: Without dead ends: 118 [2021-11-23 02:08:09,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:08:09,375 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 32 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:09,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 175 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:08:09,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-23 02:08:09,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 93. [2021-11-23 02:08:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 92 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2021-11-23 02:08:09,383 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 12 [2021-11-23 02:08:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:09,384 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-23 02:08:09,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,384 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2021-11-23 02:08:09,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 02:08:09,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:09,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:09,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:08:09,386 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:09,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:09,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1127167743, now seen corresponding path program 1 times [2021-11-23 02:08:09,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:09,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203680841] [2021-11-23 02:08:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:09,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:09,475 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:09,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203680841] [2021-11-23 02:08:09,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203680841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:09,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:09,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:08:09,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984464068] [2021-11-23 02:08:09,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:09,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:08:09,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:09,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:08:09,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:08:09,478 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:09,679 INFO L93 Difference]: Finished difference Result 120 states and 131 transitions. [2021-11-23 02:08:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:08:09,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-23 02:08:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:09,681 INFO L225 Difference]: With dead ends: 120 [2021-11-23 02:08:09,681 INFO L226 Difference]: Without dead ends: 120 [2021-11-23 02:08:09,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:08:09,683 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 52 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:09,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 145 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:08:09,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-23 02:08:09,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 95. [2021-11-23 02:08:09,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 69 states have (on average 1.565217391304348) internal successors, (108), 94 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) [2021-11-23 02:08:09,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-11-23 02:08:09,690 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 14 [2021-11-23 02:08:09,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:09,691 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-11-23 02:08:09,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,691 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-11-23 02:08:09,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 02:08:09,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:09,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:09,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:08:09,693 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:09,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:09,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1418310666, now seen corresponding path program 1 times [2021-11-23 02:08:09,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:09,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691700203] [2021-11-23 02:08:09,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:09,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:09,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:09,746 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:09,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691700203] [2021-11-23 02:08:09,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691700203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:09,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:09,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:08:09,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113016466] [2021-11-23 02:08:09,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:09,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:08:09,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:09,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:08:09,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:08:09,749 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:09,850 INFO L93 Difference]: Finished difference Result 99 states and 111 transitions. [2021-11-23 02:08:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:08:09,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 02:08:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:09,851 INFO L225 Difference]: With dead ends: 99 [2021-11-23 02:08:09,852 INFO L226 Difference]: Without dead ends: 99 [2021-11-23 02:08:09,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:08:09,853 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 122 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:09,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 63 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:08:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-23 02:08:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-11-23 02:08:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.5492957746478873) internal successors, (110), 96 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2021-11-23 02:08:09,860 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 15 [2021-11-23 02:08:09,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:09,860 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2021-11-23 02:08:09,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:09,861 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2021-11-23 02:08:09,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:08:09,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:09,862 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:09,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:08:09,862 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:09,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:09,863 INFO L85 PathProgramCache]: Analyzing trace with hash 643527053, now seen corresponding path program 1 times [2021-11-23 02:08:09,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:09,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733264319] [2021-11-23 02:08:09,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:09,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:09,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:09,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733264319] [2021-11-23 02:08:09,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733264319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:09,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:09,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:08:09,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116304870] [2021-11-23 02:08:09,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:09,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:08:09,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:09,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:08:09,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:08:09,921 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand has 5 states, 4 states have (on average 4.0) 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) [2021-11-23 02:08:10,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:10,071 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2021-11-23 02:08:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:08:10,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) 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 16 [2021-11-23 02:08:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:10,074 INFO L225 Difference]: With dead ends: 103 [2021-11-23 02:08:10,074 INFO L226 Difference]: Without dead ends: 103 [2021-11-23 02:08:10,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:08:10,075 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 95 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:10,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 81 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:08:10,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-23 02:08:10,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2021-11-23 02:08:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 94 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) [2021-11-23 02:08:10,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-11-23 02:08:10,082 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 16 [2021-11-23 02:08:10,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:10,082 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-11-23 02:08:10,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) 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) [2021-11-23 02:08:10,082 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-11-23 02:08:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:08:10,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:10,083 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:10,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:08:10,084 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:10,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:10,093 INFO L85 PathProgramCache]: Analyzing trace with hash 643527054, now seen corresponding path program 1 times [2021-11-23 02:08:10,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:10,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968722614] [2021-11-23 02:08:10,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:10,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:10,184 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:10,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968722614] [2021-11-23 02:08:10,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968722614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:10,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:10,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:08:10,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934926428] [2021-11-23 02:08:10,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:10,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:08:10,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:10,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:08:10,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:08:10,186 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand has 5 states, 4 states have (on average 4.0) 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) [2021-11-23 02:08:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:10,375 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2021-11-23 02:08:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:08:10,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) 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 16 [2021-11-23 02:08:10,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:10,377 INFO L225 Difference]: With dead ends: 97 [2021-11-23 02:08:10,377 INFO L226 Difference]: Without dead ends: 97 [2021-11-23 02:08:10,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:08:10,378 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 52 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:10,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 123 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:08:10,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-23 02:08:10,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2021-11-23 02:08:10,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 77 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2021-11-23 02:08:10,383 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 16 [2021-11-23 02:08:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:10,383 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2021-11-23 02:08:10,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) 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) [2021-11-23 02:08:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2021-11-23 02:08:10,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 02:08:10,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:10,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:10,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:08:10,392 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:10,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:10,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1491911172, now seen corresponding path program 1 times [2021-11-23 02:08:10,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:10,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860040759] [2021-11-23 02:08:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:10,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:10,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:10,448 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:10,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860040759] [2021-11-23 02:08:10,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860040759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:10,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:10,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:08:10,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251047159] [2021-11-23 02:08:10,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:10,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:08:10,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:10,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:08:10,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:08:10,450 INFO L87 Difference]: Start difference. First operand 78 states and 90 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:10,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:10,602 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2021-11-23 02:08:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:08:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-23 02:08:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:10,603 INFO L225 Difference]: With dead ends: 112 [2021-11-23 02:08:10,604 INFO L226 Difference]: Without dead ends: 108 [2021-11-23 02:08:10,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:08:10,605 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 62 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:10,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 128 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:08:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-23 02:08:10,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 82. [2021-11-23 02:08:10,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 81 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:10,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions. [2021-11-23 02:08:10,609 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 17 [2021-11-23 02:08:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:10,610 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 94 transitions. [2021-11-23 02:08:10,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2021-11-23 02:08:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 02:08:10,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:10,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:10,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:08:10,611 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:10,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1069860552, now seen corresponding path program 1 times [2021-11-23 02:08:10,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:10,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931773632] [2021-11-23 02:08:10,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:10,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:10,779 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:10,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931773632] [2021-11-23 02:08:10,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931773632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:08:10,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:08:10,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:08:10,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963342349] [2021-11-23 02:08:10,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:08:10,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:08:10,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:10,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:08:10,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:08:10,782 INFO L87 Difference]: Start difference. First operand 82 states and 94 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:10,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:10,961 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2021-11-23 02:08:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:08:10,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-23 02:08:10,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:10,962 INFO L225 Difference]: With dead ends: 97 [2021-11-23 02:08:10,962 INFO L226 Difference]: Without dead ends: 89 [2021-11-23 02:08:10,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:08:10,962 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 142 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:10,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 125 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:08:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-23 02:08:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2021-11-23 02:08:10,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 73 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2021-11-23 02:08:10,966 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 18 [2021-11-23 02:08:10,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:10,967 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2021-11-23 02:08:10,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:10,967 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2021-11-23 02:08:10,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:08:10,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:10,968 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] [2021-11-23 02:08:10,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:08:10,968 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:10,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:10,969 INFO L85 PathProgramCache]: Analyzing trace with hash 170225442, now seen corresponding path program 1 times [2021-11-23 02:08:10,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:10,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16776419] [2021-11-23 02:08:10,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:10,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:11,363 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:11,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16776419] [2021-11-23 02:08:11,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16776419] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:11,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527397824] [2021-11-23 02:08:11,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:11,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:11,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:11,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:11,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:08:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:11,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 02:08:11,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:11,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:11,680 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 0 case distinctions, treesize of input 25 treesize of output 20 [2021-11-23 02:08:11,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:11,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:11,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:08:11,769 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:08:11,769 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 11 treesize of output 11 [2021-11-23 02:08:11,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-23 02:08:11,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:11,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:11,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:11,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2021-11-23 02:08:11,926 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 16 treesize of output 8 [2021-11-23 02:08:11,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2021-11-23 02:08:12,083 INFO L354 Elim1Store]: treesize reduction 118, result has 15.7 percent of original size [2021-11-23 02:08:12,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 36 [2021-11-23 02:08:12,230 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:08:12,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 18 [2021-11-23 02:08:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:12,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:08:22,789 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 95914 treesize of output 95146 [2021-11-23 02:08:26,823 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 02:08:26,825 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 72734 treesize of output 72733 [2021-11-23 02:08:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:32,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527397824] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:08:32,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [454119313] [2021-11-23 02:08:33,020 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-23 02:08:33,020 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:08:33,065 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:08:33,071 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:08:33,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:08:33,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:08:33,272 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 1 [2021-11-23 02:08:33,279 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 1 [2021-11-23 02:08:33,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-23 02:08:33,328 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 15 treesize of output 1 [2021-11-23 02:08:33,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 49 [2021-11-23 02:08:33,353 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 15 treesize of output 1 [2021-11-23 02:08:33,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:08:33,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 52 [2021-11-23 02:08:33,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:33,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-23 02:08:33,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,620 INFO L354 Elim1Store]: treesize reduction 44, result has 44.3 percent of original size [2021-11-23 02:08:33,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 87 [2021-11-23 02:08:33,666 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:08:33,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:08:33,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:08:33,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:08:33,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-23 02:08:33,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 99 [2021-11-23 02:08:33,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:33,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2021-11-23 02:08:33,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:33,949 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 1 [2021-11-23 02:08:33,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:34,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 02:08:34,238 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:08:34,238 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 128 treesize of output 106 [2021-11-23 02:08:34,260 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:08:34,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 87 [2021-11-23 02:08:34,500 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:08:34,501 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 111 treesize of output 93 [2021-11-23 02:08:34,520 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:08:34,520 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 90 treesize of output 78 [2021-11-23 02:08:34,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:34,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2021-11-23 02:08:34,636 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-23 02:08:34,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 99 treesize of output 110 [2021-11-23 02:08:34,671 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:08:34,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2021-11-23 02:08:34,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:34,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:34,840 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 1 [2021-11-23 02:08:35,073 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 15 treesize of output 1 [2021-11-23 02:08:35,079 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 15 treesize of output 1 [2021-11-23 02:08:35,083 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 11 treesize of output 7 [2021-11-23 02:08:35,098 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 68 treesize of output 64 [2021-11-23 02:08:35,111 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 02:08:35,112 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 48 [2021-11-23 02:08:35,118 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 45 treesize of output 41 [2021-11-23 02:08:35,466 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:08:35,467 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 267 treesize of output 255 [2021-11-23 02:08:35,509 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:08:35,509 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 255 treesize of output 243 [2021-11-23 02:08:35,547 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 02:08:35,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 243 treesize of output 245 [2021-11-23 02:08:35,881 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 15 treesize of output 1 [2021-11-23 02:08:35,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:35,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-23 02:08:35,895 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 15 treesize of output 1 [2021-11-23 02:08:36,025 INFO L354 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2021-11-23 02:08:36,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 218 treesize of output 255 [2021-11-23 02:08:36,598 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:08:36,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:08:36,654 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:08:36,715 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:08:36,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:08:36,772 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:08:36,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:08:36,844 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:08:36,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:08:36,929 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:08:36,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 222 [2021-11-23 02:08:37,060 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:08:37,105 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:08:37,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:08:37,150 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:08:37,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:08:37,213 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:08:37,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:08:37,300 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:08:37,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:08:37,353 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:08:37,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:08:37,622 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:08:40,412 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2206#(and (<= 0 |#NULL.base|) (<= (+ |ULTIMATE.start_main_~p~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~p~0#1.base|)) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (exists ((|v_ULTIMATE.start_main_~p~0#1.offset_74| Int) (|v_ULTIMATE.start_main_~p~0#1.base_91| Int)) (and (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_74|) (<= (+ |v_ULTIMATE.start_main_~p~0#1.offset_74| 12) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_91|)) (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_91|) 1) (= 3 (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_91|) |v_ULTIMATE.start_main_~p~0#1.offset_74|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_91|) (+ |v_ULTIMATE.start_main_~p~0#1.offset_74| 8)) 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_91|) (+ |v_ULTIMATE.start_main_~p~0#1.offset_74| 8)) 0))) (<= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) (+ |ULTIMATE.start_main_~p~0#1.offset| 4)) 0) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 2)) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= |#NULL.base| 0) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 3)) (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~p~0#1.base|) 1) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-23 02:08:40,412 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:08:40,413 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:08:40,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 29 [2021-11-23 02:08:40,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585940066] [2021-11-23 02:08:40,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:08:40,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-23 02:08:40,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:40,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-23 02:08:40,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=2072, Unknown=5, NotChecked=0, Total=2352 [2021-11-23 02:08:40,416 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand has 29 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 29 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:40,857 INFO L93 Difference]: Finished difference Result 109 states and 123 transitions. [2021-11-23 02:08:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 02:08:40,858 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 29 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-23 02:08:40,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:40,859 INFO L225 Difference]: With dead ends: 109 [2021-11-23 02:08:40,859 INFO L226 Difference]: Without dead ends: 109 [2021-11-23 02:08:40,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 934 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=324, Invalid=2323, Unknown=5, NotChecked=0, Total=2652 [2021-11-23 02:08:40,862 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 65 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 258 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:40,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 334 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 445 Invalid, 0 Unknown, 258 Unchecked, 0.3s Time] [2021-11-23 02:08:40,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-23 02:08:40,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 90. [2021-11-23 02:08:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 89 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) [2021-11-23 02:08:40,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2021-11-23 02:08:40,876 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 24 [2021-11-23 02:08:40,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:40,877 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2021-11-23 02:08:40,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 29 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2021-11-23 02:08:40,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:08:40,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:40,880 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] [2021-11-23 02:08:40,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:08:41,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:41,108 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:41,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:41,109 INFO L85 PathProgramCache]: Analyzing trace with hash 169917612, now seen corresponding path program 1 times [2021-11-23 02:08:41,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:41,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154721633] [2021-11-23 02:08:41,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:41,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:41,258 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:41,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154721633] [2021-11-23 02:08:41,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154721633] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:41,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281612505] [2021-11-23 02:08:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:41,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:41,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:41,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:41,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:08:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:41,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 02:08:41,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:41,449 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 11 treesize of output 7 [2021-11-23 02:08:41,490 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:08:41,491 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 11 treesize of output 11 [2021-11-23 02:08:41,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:41,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:08:41,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-23 02:08:41,600 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 20 treesize of output 8 [2021-11-23 02:08:41,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 02:08:41,706 INFO L354 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2021-11-23 02:08:41,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 25 [2021-11-23 02:08:41,827 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 02:08:41,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 14 [2021-11-23 02:08:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:41,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:08:47,254 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 Int) (v_DerPreprocessor_3 Int) (|v_ULTIMATE.start_main_~p~0#1.offset_79| Int)) (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 8) v_DerPreprocessor_4)))) (store .cse0 |c_ULTIMATE.start_main_~t~0#1.base| (store (store (select .cse0 |c_ULTIMATE.start_main_~t~0#1.base|) |v_ULTIMATE.start_main_~p~0#1.offset_79| 3) (+ |v_ULTIMATE.start_main_~p~0#1.offset_79| 8) v_DerPreprocessor_3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2021-11-23 02:08:47,330 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 620 treesize of output 612 [2021-11-23 02:08:48,765 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 02:08:48,765 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 23 [2021-11-23 02:08:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:48,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281612505] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:08:48,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [89029584] [2021-11-23 02:08:48,820 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-23 02:08:48,820 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:08:48,821 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:08:48,821 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:08:48,821 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:08:48,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:48,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:48,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:08:48,904 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 1 [2021-11-23 02:08:48,912 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 1 [2021-11-23 02:08:48,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:48,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-23 02:08:48,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:48,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:48,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 49 [2021-11-23 02:08:48,966 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 15 treesize of output 1 [2021-11-23 02:08:48,976 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 15 treesize of output 1 [2021-11-23 02:08:49,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:08:49,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-23 02:08:49,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 52 [2021-11-23 02:08:49,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:49,181 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:08:49,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:08:49,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:08:49,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 69 [2021-11-23 02:08:49,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:08:49,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:08:49,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2021-11-23 02:08:49,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2021-11-23 02:08:49,471 INFO L354 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2021-11-23 02:08:49,472 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 450 treesize of output 447 [2021-11-23 02:08:49,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,514 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-23 02:08:49,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 447 treesize of output 392 [2021-11-23 02:08:49,559 INFO L354 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2021-11-23 02:08:49,560 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 428 treesize of output 431 [2021-11-23 02:08:50,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:50,088 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-23 02:08:50,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 489 [2021-11-23 02:08:50,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:50,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:50,246 INFO L354 Elim1Store]: treesize reduction 250, result has 21.1 percent of original size [2021-11-23 02:08:50,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 592 treesize of output 554 [2021-11-23 02:08:50,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:50,308 INFO L354 Elim1Store]: treesize reduction 106, result has 17.8 percent of original size [2021-11-23 02:08:50,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 584 treesize of output 549 [2021-11-23 02:08:50,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:50,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:50,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:50,680 INFO L354 Elim1Store]: treesize reduction 262, result has 20.4 percent of original size [2021-11-23 02:08:50,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 630 treesize of output 583 [2021-11-23 02:08:50,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:50,762 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-11-23 02:08:50,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 639 treesize of output 509 [2021-11-23 02:08:50,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:50,826 INFO L354 Elim1Store]: treesize reduction 94, result has 19.7 percent of original size [2021-11-23 02:08:50,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 624 treesize of output 593 [2021-11-23 02:08:51,054 INFO L354 Elim1Store]: treesize reduction 246, result has 12.5 percent of original size [2021-11-23 02:08:51,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 604 treesize of output 609 [2021-11-23 02:08:51,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:51,280 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 1 [2021-11-23 02:08:51,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:51,366 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:08:51,366 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 90 treesize of output 68 [2021-11-23 02:08:51,382 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:08:51,383 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 65 treesize of output 43 [2021-11-23 02:08:51,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 02:08:51,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:51,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2021-11-23 02:08:51,463 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:08:51,463 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 52 [2021-11-23 02:08:51,480 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:08:51,480 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 37 [2021-11-23 02:08:51,544 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:08:51,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 68 [2021-11-23 02:08:51,576 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-23 02:08:51,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 73 [2021-11-23 02:08:51,632 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 1 [2021-11-23 02:08:51,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:51,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:08:51,756 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 15 treesize of output 1 [2021-11-23 02:08:51,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:08:51,764 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 15 treesize of output 1 [2021-11-23 02:08:51,784 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 02:08:51,784 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 52 [2021-11-23 02:08:51,789 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 49 treesize of output 45 [2021-11-23 02:08:51,793 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 45 treesize of output 41 [2021-11-23 02:08:52,015 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:08:52,015 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 217 treesize of output 205 [2021-11-23 02:08:52,051 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:08:52,051 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 205 treesize of output 193 [2021-11-23 02:08:52,092 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 02:08:52,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 193 treesize of output 195 [2021-11-23 02:08:52,218 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 15 treesize of output 1 [2021-11-23 02:08:52,222 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 15 treesize of output 1 [2021-11-23 02:08:52,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:52,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-23 02:08:52,321 INFO L354 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2021-11-23 02:08:52,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 206 treesize of output 243 [2021-11-23 02:08:52,616 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:08:52,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:08:52,664 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:08:52,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:08:52,698 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:08:52,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:08:52,741 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:08:52,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:08:52,827 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:08:52,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:08:52,886 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:08:55,095 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2596#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= (+ |ULTIMATE.start_main_~p~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~p~0#1.base|)) (= |ULTIMATE.start_main_~i~0#1| 0) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) (+ |ULTIMATE.start_main_~p~0#1.offset| 4)) 0)) (exists ((|v_ULTIMATE.start_main_~p~0#1.offset_85| Int) (|v_ULTIMATE.start_main_~p~0#1.base_101| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_101|) (+ |v_ULTIMATE.start_main_~p~0#1.offset_85| 8)) 0) (<= (+ |v_ULTIMATE.start_main_~p~0#1.offset_85| 12) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_101|)) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_101|) |v_ULTIMATE.start_main_~p~0#1.offset_85|) 3) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_101|) (+ |v_ULTIMATE.start_main_~p~0#1.offset_85| 8)) 0) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_85|) (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_101|) 1))) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 3)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 1)) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~p~0#1.base|) 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 02:08:55,096 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:08:55,096 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:08:55,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 26 [2021-11-23 02:08:55,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717429527] [2021-11-23 02:08:55,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:08:55,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-23 02:08:55,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:55,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-23 02:08:55,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=1718, Unknown=8, NotChecked=86, Total=2070 [2021-11-23 02:08:55,099 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:55,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:55,846 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2021-11-23 02:08:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 02:08:55,847 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-23 02:08:55,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:55,848 INFO L225 Difference]: With dead ends: 113 [2021-11-23 02:08:55,848 INFO L226 Difference]: Without dead ends: 113 [2021-11-23 02:08:55,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=277, Invalid=1880, Unknown=9, NotChecked=90, Total=2256 [2021-11-23 02:08:55,850 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 85 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 419 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:08:55,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 283 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 187 Invalid, 0 Unknown, 419 Unchecked, 0.2s Time] [2021-11-23 02:08:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-23 02:08:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 92. [2021-11-23 02:08:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 76 states have (on average 1.394736842105263) internal successors, (106), 91 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2021-11-23 02:08:55,854 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 24 [2021-11-23 02:08:55,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:55,854 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2021-11-23 02:08:55,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:08:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2021-11-23 02:08:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:08:55,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:55,856 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] [2021-11-23 02:08:55,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:08:56,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 02:08:56,070 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:08:56,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:56,071 INFO L85 PathProgramCache]: Analyzing trace with hash 89135746, now seen corresponding path program 1 times [2021-11-23 02:08:56,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:56,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356304987] [2021-11-23 02:08:56,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:56,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:56,243 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:56,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356304987] [2021-11-23 02:08:56,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356304987] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:08:56,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692170015] [2021-11-23 02:08:56,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:56,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:56,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:56,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:56,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:08:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:56,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 02:08:56,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:56,420 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 11 treesize of output 7 [2021-11-23 02:08:56,471 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:08:56,471 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 11 treesize of output 11 [2021-11-23 02:08:56,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-23 02:08:56,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:56,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:08:56,573 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 20 treesize of output 8 [2021-11-23 02:08:56,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 02:08:56,663 INFO L354 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2021-11-23 02:08:56,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 25 [2021-11-23 02:08:56,768 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 02:08:56,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 26 treesize of output 14 [2021-11-23 02:08:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:08:56,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:08:57,328 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_5 Int) (|ULTIMATE.start_main_~p~0#1.offset| Int)) (= 2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| 3) (+ |ULTIMATE.start_main_~p~0#1.offset| 8) v_DerPreprocessor_5)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) is different from false [2021-11-23 02:08:58,049 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~p~0#1.offset_90| Int) (v_DerPreprocessor_5 Int)) (= 2 (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 8)))) (store |c_#memory_int| .cse0 (store (store (select |c_#memory_int| .cse0) |v_ULTIMATE.start_main_~p~0#1.offset_90| 3) (+ |v_ULTIMATE.start_main_~p~0#1.offset_90| 8) v_DerPreprocessor_5))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) is different from false [2021-11-23 02:09:02,211 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 1204 treesize of output 1188 [2021-11-23 02:09:04,153 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 02:09:04,154 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 23 [2021-11-23 02:09:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 02:09:04,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692170015] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:09:04,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [203792483] [2021-11-23 02:09:04,205 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-23 02:09:04,205 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:09:04,205 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:09:04,205 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:09:04,206 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:09:04,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:09:04,280 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 1 [2021-11-23 02:09:04,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-23 02:09:04,298 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 1 [2021-11-23 02:09:04,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2021-11-23 02:09:04,338 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 15 treesize of output 1 [2021-11-23 02:09:04,345 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 15 treesize of output 1 [2021-11-23 02:09:04,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:09:04,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:04,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:04,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 43 [2021-11-23 02:09:04,501 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:09:04,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:09:04,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:04,532 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 02:09:04,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 64 [2021-11-23 02:09:04,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:09:04,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-23 02:09:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:09:04,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 02:09:04,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:04,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 54 [2021-11-23 02:09:04,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:04,724 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 1 [2021-11-23 02:09:04,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:04,961 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:09:04,962 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 128 treesize of output 106 [2021-11-23 02:09:04,979 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:09:04,979 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 103 treesize of output 81 [2021-11-23 02:09:05,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 02:09:05,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:05,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:09:05,154 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:09:05,155 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 102 treesize of output 90 [2021-11-23 02:09:05,169 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:09:05,169 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 87 treesize of output 75 [2021-11-23 02:09:05,253 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-23 02:09:05,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 99 treesize of output 110 [2021-11-23 02:09:05,272 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:09:05,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2021-11-23 02:09:05,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:05,397 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 1 [2021-11-23 02:09:05,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:05,598 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 15 treesize of output 1 [2021-11-23 02:09:05,603 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 15 treesize of output 1 [2021-11-23 02:09:05,610 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 11 treesize of output 7 [2021-11-23 02:09:05,641 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 02:09:05,641 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 52 [2021-11-23 02:09:05,646 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 49 treesize of output 45 [2021-11-23 02:09:05,651 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 45 treesize of output 41 [2021-11-23 02:09:05,934 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:09:05,935 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 267 treesize of output 255 [2021-11-23 02:09:05,970 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:09:05,971 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 255 treesize of output 243 [2021-11-23 02:09:06,009 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 02:09:06,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 243 treesize of output 245 [2021-11-23 02:09:06,252 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 15 treesize of output 1 [2021-11-23 02:09:06,256 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 15 treesize of output 1 [2021-11-23 02:09:06,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:06,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:09:06,392 INFO L354 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2021-11-23 02:09:06,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 196 treesize of output 233 [2021-11-23 02:09:06,718 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:09:06,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:09:06,771 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:09:06,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:09:06,827 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:09:06,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:09:06,880 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:09:06,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:09:06,985 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:09:06,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:09:07,033 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:09:07,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:09:07,126 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:09:09,479 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2991#(and (<= 0 |#NULL.base|) (<= (+ |ULTIMATE.start_main_~p~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~p~0#1.base|)) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) (+ |ULTIMATE.start_main_~p~0#1.offset| 4)) 0) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 2)) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (exists ((|v_ULTIMATE.start_main_~p~0#1.base_110| Int) (|v_ULTIMATE.start_main_~p~0#1.offset_95| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_110|) 1) (<= (+ |v_ULTIMATE.start_main_~p~0#1.offset_95| 12) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_110|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_110|) (+ |v_ULTIMATE.start_main_~p~0#1.offset_95| 8)) 0) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_110|) |v_ULTIMATE.start_main_~p~0#1.offset_95|) 3) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_110|) (+ |v_ULTIMATE.start_main_~p~0#1.offset_95| 8)) 0) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_95|))) (<= |#NULL.base| 0) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 3)) (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~p~0#1.base|) 1) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-23 02:09:09,479 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:09:09,479 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:09:09,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 26 [2021-11-23 02:09:09,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655086720] [2021-11-23 02:09:09,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:09:09,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-23 02:09:09,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:09,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-23 02:09:09,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1635, Unknown=9, NotChecked=170, Total=2070 [2021-11-23 02:09:09,482 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:09:11,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:09:11,268 INFO L93 Difference]: Finished difference Result 158 states and 178 transitions. [2021-11-23 02:09:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 02:09:11,269 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-23 02:09:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:09:11,270 INFO L225 Difference]: With dead ends: 158 [2021-11-23 02:09:11,270 INFO L226 Difference]: Without dead ends: 158 [2021-11-23 02:09:11,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=335, Invalid=2112, Unknown=11, NotChecked=194, Total=2652 [2021-11-23 02:09:11,272 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 178 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 518 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:09:11,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 336 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 387 Invalid, 0 Unknown, 518 Unchecked, 0.3s Time] [2021-11-23 02:09:11,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-23 02:09:11,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 107. [2021-11-23 02:09:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 106 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:09:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2021-11-23 02:09:11,277 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 24 [2021-11-23 02:09:11,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:09:11,277 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2021-11-23 02:09:11,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:09:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2021-11-23 02:09:11,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:09:11,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:09:11,279 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] [2021-11-23 02:09:11,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:09:11,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 02:09:11,505 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:09:11,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:09:11,505 INFO L85 PathProgramCache]: Analyzing trace with hash 88827916, now seen corresponding path program 1 times [2021-11-23 02:09:11,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:09:11,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913170711] [2021-11-23 02:09:11,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:11,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:09:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:09:11,730 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:09:11,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913170711] [2021-11-23 02:09:11,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913170711] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:09:11,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507922339] [2021-11-23 02:09:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:11,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:11,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:09:11,732 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:09:11,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:09:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:11,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 02:09:11,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:09:11,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:11,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:11,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:09:12,018 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:09:12,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 02:09:12,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:12,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:12,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:12,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-11-23 02:09:12,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-23 02:09:12,149 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 20 treesize of output 8 [2021-11-23 02:09:12,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:12,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:09:12,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:12,274 INFO L354 Elim1Store]: treesize reduction 126, result has 16.0 percent of original size [2021-11-23 02:09:12,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 37 [2021-11-23 02:09:12,349 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-23 02:09:12,349 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 43 treesize of output 23 [2021-11-23 02:09:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:09:12,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:09:12,924 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_7 Int) (|ULTIMATE.start_main_~p~0#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| 3) (+ |ULTIMATE.start_main_~p~0#1.offset| 8) v_DerPreprocessor_7)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 0)) is different from false [2021-11-23 02:09:16,139 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_8 Int) (|v_ULTIMATE.start_main_~p~0#1.offset_100| Int) (v_DerPreprocessor_7 Int)) (= 0 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 8) v_DerPreprocessor_8)))) (store .cse0 |c_ULTIMATE.start_main_~t~0#1.base| (store (store (select .cse0 |c_ULTIMATE.start_main_~t~0#1.base|) |v_ULTIMATE.start_main_~p~0#1.offset_100| 3) (+ |v_ULTIMATE.start_main_~p~0#1.offset_100| 8) v_DerPreprocessor_7))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) is different from false [2021-11-23 02:09:22,387 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 2822 treesize of output 2798 [2021-11-23 02:09:22,443 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 02:09:22,444 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 2450 treesize of output 2449 [2021-11-23 02:09:22,481 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 02:09:22,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1010120578] [2021-11-23 02:09:22,483 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-23 02:09:22,484 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:09:22,484 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:09:22,484 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:09:22,484 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:09:22,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:09:22,567 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 1 [2021-11-23 02:09:22,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-23 02:09:22,589 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 1 [2021-11-23 02:09:22,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2021-11-23 02:09:22,633 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 15 treesize of output 1 [2021-11-23 02:09:22,640 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 15 treesize of output 1 [2021-11-23 02:09:22,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:09:22,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-23 02:09:22,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 43 [2021-11-23 02:09:22,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:22,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,827 INFO L354 Elim1Store]: treesize reduction 44, result has 44.3 percent of original size [2021-11-23 02:09:22,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 78 [2021-11-23 02:09:22,849 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:09:22,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:09:22,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:09:22,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:09:22,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-23 02:09:22,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 80 [2021-11-23 02:09:22,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:22,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 54 [2021-11-23 02:09:23,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:23,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:23,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:09:23,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 02:09:23,221 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:09:23,221 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 128 treesize of output 106 [2021-11-23 02:09:23,235 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:09:23,235 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 103 treesize of output 81 [2021-11-23 02:09:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:23,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:09:23,415 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:09:23,416 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 111 treesize of output 93 [2021-11-23 02:09:23,434 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:09:23,435 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 90 treesize of output 78 [2021-11-23 02:09:23,543 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-23 02:09:23,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 99 treesize of output 110 [2021-11-23 02:09:23,569 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:09:23,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 106 [2021-11-23 02:09:23,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:23,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:09:23,706 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 1 [2021-11-23 02:09:23,894 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 15 treesize of output 1 [2021-11-23 02:09:23,899 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 15 treesize of output 1 [2021-11-23 02:09:23,902 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 11 treesize of output 7 [2021-11-23 02:09:23,927 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 02:09:23,927 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 52 [2021-11-23 02:09:23,932 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 49 treesize of output 45 [2021-11-23 02:09:23,935 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 45 treesize of output 41 [2021-11-23 02:09:24,229 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:09:24,230 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 267 treesize of output 255 [2021-11-23 02:09:24,266 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:09:24,267 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 255 treesize of output 243 [2021-11-23 02:09:24,303 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 02:09:24,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 243 treesize of output 245 [2021-11-23 02:09:24,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:09:24,538 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 15 treesize of output 1 [2021-11-23 02:09:24,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:24,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:09:24,636 INFO L354 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2021-11-23 02:09:24,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 196 treesize of output 233 [2021-11-23 02:09:24,749 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:09:24,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:09:24,776 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:09:27,149 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3451#(and (<= 0 |#NULL.base|) (<= (+ |ULTIMATE.start_main_~p~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~p~0#1.base|)) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) (+ |ULTIMATE.start_main_~p~0#1.offset| 4)) 0)) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= |#NULL.base| 0) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 3)) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 1)) (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~p~0#1.base|) 1) (<= 0 |#NULL.offset|) (exists ((|v_ULTIMATE.start_main_~p~0#1.base_118| Int) (|v_ULTIMATE.start_main_~p~0#1.offset_104| Int)) (and (<= (+ 12 |v_ULTIMATE.start_main_~p~0#1.offset_104|) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_118|)) (= 3 (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_118|) |v_ULTIMATE.start_main_~p~0#1.offset_104|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_118|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_104|)) 0) (= 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_118|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_104|))) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_104|) (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_118|) 1))) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-23 02:09:27,150 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:09:27,150 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:09:27,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-11-23 02:09:27,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308982276] [2021-11-23 02:09:27,150 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 02:09:27,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 02:09:27,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:27,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 02:09:27,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=2211, Unknown=9, NotChecked=198, Total=2756 [2021-11-23 02:09:27,152 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:09:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:09:27,591 INFO L93 Difference]: Finished difference Result 137 states and 152 transitions. [2021-11-23 02:09:27,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:09:27,592 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-23 02:09:27,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:09:27,593 INFO L225 Difference]: With dead ends: 137 [2021-11-23 02:09:27,593 INFO L226 Difference]: Without dead ends: 137 [2021-11-23 02:09:27,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=414, Invalid=2555, Unknown=9, NotChecked=214, Total=3192 [2021-11-23 02:09:27,595 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 149 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:09:27,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 221 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:09:27,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-23 02:09:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 107. [2021-11-23 02:09:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 91 states have (on average 1.3516483516483517) internal successors, (123), 106 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:09:27,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 123 transitions. [2021-11-23 02:09:27,599 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 123 transitions. Word has length 24 [2021-11-23 02:09:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:09:27,599 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 123 transitions. [2021-11-23 02:09:27,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:09:27,600 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 123 transitions. [2021-11-23 02:09:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:09:27,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:09:27,601 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] [2021-11-23 02:09:27,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 02:09:27,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:27,816 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:09:27,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:09:27,817 INFO L85 PathProgramCache]: Analyzing trace with hash 972481020, now seen corresponding path program 1 times [2021-11-23 02:09:27,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:09:27,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140082447] [2021-11-23 02:09:27,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:27,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:09:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:09:28,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:09:28,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140082447] [2021-11-23 02:09:28,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140082447] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:09:28,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007816323] [2021-11-23 02:09:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:28,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:28,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:09:28,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:09:28,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:09:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:09:28,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 02:09:28,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:09:28,176 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:09:28,176 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 17 treesize of output 21 [2021-11-23 02:09:28,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-23 02:09:28,310 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 02:09:28,310 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 40 treesize of output 20 [2021-11-23 02:09:28,334 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 02:09:28,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 29 [2021-11-23 02:09:28,444 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:09:28,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 24 [2021-11-23 02:09:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:09:28,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:09:29,214 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (|ULTIMATE.start_main_~p~0#1.offset| Int)) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| v_DerPreprocessor_9) (+ |ULTIMATE.start_main_~p~0#1.offset| 8) 0)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) 1)) is different from false [2021-11-23 02:09:38,639 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 1934 treesize of output 1886 [2021-11-23 02:15:43,262 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-11-23 02:15:43,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 37 treesize of output 37 [2021-11-23 02:15:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 02:15:43,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007816323] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:15:43,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [72314511] [2021-11-23 02:15:43,330 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-23 02:15:43,330 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:15:43,330 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:15:43,331 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:15:43,331 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:15:43,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:15:43,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-23 02:15:43,423 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 1 [2021-11-23 02:15:43,429 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 1 [2021-11-23 02:15:43,455 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 15 treesize of output 1 [2021-11-23 02:15:43,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 49 [2021-11-23 02:15:43,473 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 15 treesize of output 1 [2021-11-23 02:15:43,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:15:43,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 52 [2021-11-23 02:15:43,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:43,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-23 02:15:43,628 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:15:43,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:15:43,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:15:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 69 [2021-11-23 02:15:43,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 80 [2021-11-23 02:15:43,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:15:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:15:43,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2021-11-23 02:15:43,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:15:43,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:43,854 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-23 02:15:43,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 451 treesize of output 396 [2021-11-23 02:15:43,900 INFO L354 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2021-11-23 02:15:43,901 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 432 treesize of output 429 [2021-11-23 02:15:43,940 INFO L354 Elim1Store]: treesize reduction 31, result has 29.5 percent of original size [2021-11-23 02:15:43,941 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 429 treesize of output 432 [2021-11-23 02:15:44,676 INFO L354 Elim1Store]: treesize reduction 120, result has 17.2 percent of original size [2021-11-23 02:15:44,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 682 treesize of output 552 [2021-11-23 02:15:44,701 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:15:44,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:44,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:44,822 INFO L354 Elim1Store]: treesize reduction 476, result has 14.5 percent of original size [2021-11-23 02:15:44,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 663 treesize of output 609 [2021-11-23 02:15:44,869 INFO L354 Elim1Store]: treesize reduction 112, result has 17.0 percent of original size [2021-11-23 02:15:44,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 639 treesize of output 563 [2021-11-23 02:15:45,123 INFO L354 Elim1Store]: treesize reduction 108, result has 18.8 percent of original size [2021-11-23 02:15:45,124 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 701 treesize of output 569 [2021-11-23 02:15:45,180 INFO L354 Elim1Store]: treesize reduction 100, result has 18.7 percent of original size [2021-11-23 02:15:45,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 686 treesize of output 602 [2021-11-23 02:15:45,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:45,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:15:45,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:45,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:45,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:45,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:45,325 INFO L354 Elim1Store]: treesize reduction 522, result has 13.4 percent of original size [2021-11-23 02:15:45,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 671 treesize of output 608 [2021-11-23 02:15:45,542 INFO L354 Elim1Store]: treesize reduction 246, result has 12.5 percent of original size [2021-11-23 02:15:45,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 675 treesize of output 672 [2021-11-23 02:15:45,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:45,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:45,755 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 1 [2021-11-23 02:15:45,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 02:15:45,824 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:15:45,825 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 90 treesize of output 68 [2021-11-23 02:15:45,837 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:15:45,838 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 65 treesize of output 43 [2021-11-23 02:15:45,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:45,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2021-11-23 02:15:45,899 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:15:45,899 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 52 [2021-11-23 02:15:45,914 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:15:45,915 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 37 [2021-11-23 02:15:45,958 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-23 02:15:45,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 74 [2021-11-23 02:15:45,978 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:15:45,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 70 [2021-11-23 02:15:46,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:46,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:46,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:15:46,110 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 15 treesize of output 1 [2021-11-23 02:15:46,113 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 11 treesize of output 7 [2021-11-23 02:15:46,119 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 15 treesize of output 1 [2021-11-23 02:15:46,129 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 68 treesize of output 64 [2021-11-23 02:15:46,138 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 02:15:46,139 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 48 [2021-11-23 02:15:46,142 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 45 treesize of output 41 [2021-11-23 02:15:46,685 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:15:46,685 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 217 treesize of output 205 [2021-11-23 02:15:46,716 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:15:46,716 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 205 treesize of output 193 [2021-11-23 02:15:46,744 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 02:15:46,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 193 treesize of output 195 [2021-11-23 02:15:46,860 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 15 treesize of output 1 [2021-11-23 02:15:46,864 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 15 treesize of output 1 [2021-11-23 02:15:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:46,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-23 02:15:46,969 INFO L354 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2021-11-23 02:15:46,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 206 treesize of output 243 [2021-11-23 02:15:47,180 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:15:47,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:15:47,217 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:15:47,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:15:47,250 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 02:15:47,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2021-11-23 02:15:47,333 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:15:47,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:15:47,396 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:15:47,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:15:47,485 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:15:49,690 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3894#(and (not (= (select |#valid| |ULTIMATE.start_main_~p~0#1.base|) 1)) (or (and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1.offset_121| Int) (|v_ULTIMATE.start_main_~p~0#1.base_134| Int)) (and (= |ULTIMATE.start_main_~p~0#1.offset| (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_134|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_121|))) (<= (+ 12 |v_ULTIMATE.start_main_~p~0#1.offset_121|) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_134|)) (not (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_134|) (+ 4 |v_ULTIMATE.start_main_~p~0#1.offset_121|)) 0)) (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_134|) 1) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_134|) |v_ULTIMATE.start_main_~p~0#1.offset_121|) 1) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_134|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_121|)) |ULTIMATE.start_main_~p~0#1.base|) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_121|))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1.base_130| Int) (|v_ULTIMATE.start_main_~p~0#1.offset_117| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_130|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_117|)) 0) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_130|) |v_ULTIMATE.start_main_~p~0#1.offset_117|) 3) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_117|) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_130|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_117|)) 0) (<= (+ 12 |v_ULTIMATE.start_main_~p~0#1.offset_117|) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_130|)) (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_130|) 1))) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))))' at error location [2021-11-23 02:15:49,690 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:15:49,691 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:15:49,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 25 [2021-11-23 02:15:49,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431245324] [2021-11-23 02:15:49,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:15:49,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-23 02:15:49,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:15:49,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-23 02:15:49,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1804, Unknown=1, NotChecked=88, Total=2162 [2021-11-23 02:15:49,693 INFO L87 Difference]: Start difference. First operand 107 states and 123 transitions. Second operand has 27 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 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) [2021-11-23 02:15:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:15:50,011 INFO L93 Difference]: Finished difference Result 123 states and 140 transitions. [2021-11-23 02:15:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 02:15:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 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 25 [2021-11-23 02:15:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:15:50,012 INFO L225 Difference]: With dead ends: 123 [2021-11-23 02:15:50,012 INFO L226 Difference]: Without dead ends: 123 [2021-11-23 02:15:50,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=318, Invalid=2037, Unknown=1, NotChecked=94, Total=2450 [2021-11-23 02:15:50,014 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 159 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 303 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:15:50,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 330 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 340 Invalid, 0 Unknown, 303 Unchecked, 0.2s Time] [2021-11-23 02:15:50,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-23 02:15:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 109. [2021-11-23 02:15:50,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 93 states have (on average 1.3548387096774193) internal successors, (126), 108 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:15:50,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 126 transitions. [2021-11-23 02:15:50,019 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 126 transitions. Word has length 25 [2021-11-23 02:15:50,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:15:50,020 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 126 transitions. [2021-11-23 02:15:50,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 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) [2021-11-23 02:15:50,020 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 126 transitions. [2021-11-23 02:15:50,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:15:50,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:15:50,021 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] [2021-11-23 02:15:50,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:15:50,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 02:15:50,225 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:15:50,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:15:50,225 INFO L85 PathProgramCache]: Analyzing trace with hash 972481021, now seen corresponding path program 1 times [2021-11-23 02:15:50,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:15:50,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885601285] [2021-11-23 02:15:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:50,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:15:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:15:50,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:15:50,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885601285] [2021-11-23 02:15:50,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885601285] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:15:50,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510901591] [2021-11-23 02:15:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:15:50,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:15:50,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:15:50,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:15:50,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:15:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:15:50,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 02:15:50,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:15:50,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:15:50,641 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:15:50,641 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 11 treesize of output 11 [2021-11-23 02:15:50,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-23 02:15:50,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:50,750 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-23 02:15:50,750 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 23 treesize of output 19 [2021-11-23 02:15:50,768 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 02:15:50,768 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 40 treesize of output 20 [2021-11-23 02:15:50,799 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 02:15:50,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 49 [2021-11-23 02:15:50,808 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-23 02:15:50,808 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 59 treesize of output 54 [2021-11-23 02:15:50,935 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:15:50,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 42 [2021-11-23 02:15:50,941 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:15:50,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 33 treesize of output 19 [2021-11-23 02:15:50,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:15:50,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:15:53,049 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_11 Int) (|ULTIMATE.start_main_~p~0#1.offset| Int)) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| v_DerPreprocessor_11) (+ |ULTIMATE.start_main_~p~0#1.offset| 8) 0)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (forall ((v_DerPreprocessor_11 Int) (|ULTIMATE.start_main_~p~0#1.offset| Int) (v_DerPreprocessor_10 Int)) (let ((.cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 8)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| v_DerPreprocessor_11) .cse0 0)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset| v_DerPreprocessor_10) .cse0 0)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)))))) is different from false [2021-11-23 02:15:55,078 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_11 Int) (v_subst_2 Int)) (<= 0 (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 8)))) (store |c_#memory_$Pointer$.offset| .cse0 (store (store (select |c_#memory_$Pointer$.offset| .cse0) v_subst_2 v_DerPreprocessor_11) (+ v_subst_2 8) 0))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (forall ((v_DerPreprocessor_11 Int) (v_subst_1 Int) (v_DerPreprocessor_10 Int)) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 8))) (.cse2 (+ v_subst_1 8)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (<= (+ 4 (select (select (store |c_#memory_$Pointer$.offset| .cse1 (store (store (select |c_#memory_$Pointer$.offset| .cse1) v_subst_1 v_DerPreprocessor_11) .cse2 0)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 (store (store (select |c_#memory_$Pointer$.base| .cse1) v_subst_1 v_DerPreprocessor_10) .cse2 0)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))))) is different from false [2021-11-23 02:15:55,095 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 746 treesize of output 722 [2021-11-23 02:15:55,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:55,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:55,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:15:55,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:55,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:55,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:15:55,857 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 02:15:55,858 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 23 [2021-11-23 02:15:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 02:15:55,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510901591] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:15:55,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [752636115] [2021-11-23 02:15:55,905 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-23 02:15:55,905 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:15:55,906 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:15:55,906 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:15:55,906 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:15:55,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:55,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:15:55,986 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 1 [2021-11-23 02:15:55,993 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 1 [2021-11-23 02:15:56,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-23 02:15:56,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 49 [2021-11-23 02:15:56,047 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 15 treesize of output 1 [2021-11-23 02:15:56,055 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 15 treesize of output 1 [2021-11-23 02:15:56,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:15:56,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 52 [2021-11-23 02:15:56,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-23 02:15:56,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:56,211 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:15:56,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:15:56,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:15:56,234 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 02:15:56,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 73 [2021-11-23 02:15:56,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:15:56,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:15:56,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 85 [2021-11-23 02:15:56,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:15:56,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2021-11-23 02:15:56,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:56,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:56,432 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 1 [2021-11-23 02:15:56,609 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:15:56,610 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 128 treesize of output 106 [2021-11-23 02:15:56,624 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:15:56,625 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 103 treesize of output 81 [2021-11-23 02:15:56,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 02:15:56,780 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:15:56,781 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 102 treesize of output 90 [2021-11-23 02:15:56,798 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:15:56,798 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 87 treesize of output 75 [2021-11-23 02:15:56,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:56,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2021-11-23 02:15:56,870 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:15:56,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 104 [2021-11-23 02:15:56,902 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-23 02:15:56,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 98 treesize of output 109 [2021-11-23 02:15:57,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 1 [2021-11-23 02:15:57,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:57,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:15:57,170 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 11 treesize of output 7 [2021-11-23 02:15:57,173 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 15 treesize of output 1 [2021-11-23 02:15:57,177 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 15 treesize of output 1 [2021-11-23 02:15:57,188 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 68 treesize of output 64 [2021-11-23 02:15:57,193 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 64 treesize of output 60 [2021-11-23 02:15:57,207 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 02:15:57,208 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 60 treesize of output 44 [2021-11-23 02:15:57,801 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:15:57,801 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 267 treesize of output 255 [2021-11-23 02:15:57,834 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:15:57,834 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 255 treesize of output 243 [2021-11-23 02:15:57,863 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 02:15:57,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 243 treesize of output 245 [2021-11-23 02:15:58,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:15:58,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-23 02:15:58,076 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 15 treesize of output 1 [2021-11-23 02:15:58,080 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 15 treesize of output 1 [2021-11-23 02:15:58,193 INFO L354 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2021-11-23 02:15:58,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 218 treesize of output 255 [2021-11-23 02:15:58,337 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:15:58,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:15:58,362 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:16:00,658 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4323#(and (or (and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= |#NULL.base| 0) (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1.offset_132| Int) (|v_ULTIMATE.start_main_~p~0#1.base_145| Int)) (and (= 0 (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_145|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_132|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_145|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_132|)) 0) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_145|) |v_ULTIMATE.start_main_~p~0#1.offset_132|) 3) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_132|) (<= (+ 12 |v_ULTIMATE.start_main_~p~0#1.offset_132|) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_145|)) (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_145|) 1))) (<= |ULTIMATE.start_main_~a~0#1.offset| 0)) (and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (exists ((|v_ULTIMATE.start_main_~p~0#1.offset_136| Int) (|v_ULTIMATE.start_main_~p~0#1.base_149| Int)) (and (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_149|) 1) (= |ULTIMATE.start_main_~p~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_149|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_136|))) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_149|) |v_ULTIMATE.start_main_~p~0#1.offset_136|) 1) (<= (+ 12 |v_ULTIMATE.start_main_~p~0#1.offset_136|) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_149|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_149|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_136|)) |ULTIMATE.start_main_~p~0#1.offset|) (not (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_149|) (+ 4 |v_ULTIMATE.start_main_~p~0#1.offset_136|)) 0)) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_136|))) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))) (or (< |ULTIMATE.start_main_~p~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_main_~p~0#1.base|) (+ |ULTIMATE.start_main_~p~0#1.offset| 4))))' at error location [2021-11-23 02:16:00,659 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:16:00,659 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:16:00,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 23 [2021-11-23 02:16:00,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311723919] [2021-11-23 02:16:00,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:16:00,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-23 02:16:00,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:00,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-23 02:16:00,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1573, Unknown=2, NotChecked=166, Total=1980 [2021-11-23 02:16:00,661 INFO L87 Difference]: Start difference. First operand 109 states and 126 transitions. Second operand has 25 states, 24 states have (on average 2.875) internal successors, (69), 24 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) [2021-11-23 02:16:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:04,326 INFO L93 Difference]: Finished difference Result 135 states and 155 transitions. [2021-11-23 02:16:04,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 02:16:04,326 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.875) internal successors, (69), 24 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 25 [2021-11-23 02:16:04,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:04,328 INFO L225 Difference]: With dead ends: 135 [2021-11-23 02:16:04,328 INFO L226 Difference]: Without dead ends: 135 [2021-11-23 02:16:04,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=327, Invalid=2127, Unknown=4, NotChecked=194, Total=2652 [2021-11-23 02:16:04,329 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 142 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 235 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:04,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 297 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 419 Invalid, 0 Unknown, 235 Unchecked, 0.3s Time] [2021-11-23 02:16:04,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-23 02:16:04,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 107. [2021-11-23 02:16:04,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 106 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:16:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2021-11-23 02:16:04,334 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 25 [2021-11-23 02:16:04,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:04,335 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2021-11-23 02:16:04,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.875) internal successors, (69), 24 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) [2021-11-23 02:16:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2021-11-23 02:16:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:16:04,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:04,336 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] [2021-11-23 02:16:04,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:16:04,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 02:16:04,557 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:16:04,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1531756826, now seen corresponding path program 1 times [2021-11-23 02:16:04,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:04,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871361935] [2021-11-23 02:16:04,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:04,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:04,709 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:04,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871361935] [2021-11-23 02:16:04,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871361935] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:16:04,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615980053] [2021-11-23 02:16:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:04,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:16:04,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:16:04,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:16:04,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 02:16:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:04,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 02:16:04,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:16:04,867 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:16:04,868 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 17 treesize of output 21 [2021-11-23 02:16:04,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-23 02:16:05,011 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 02:16:05,012 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 40 treesize of output 20 [2021-11-23 02:16:05,034 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 02:16:05,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 29 [2021-11-23 02:16:05,134 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:16:05,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 24 [2021-11-23 02:16:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:05,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:16:11,797 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 978 treesize of output 954 [2021-11-23 02:16:16,452 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-23 02:16:16,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 88 [2021-11-23 02:16:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:17,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615980053] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:16:17,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [920670478] [2021-11-23 02:16:17,012 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-23 02:16:17,012 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:16:17,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:16:17,012 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:16:17,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:16:17,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:16:17,089 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 1 [2021-11-23 02:16:17,096 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 1 [2021-11-23 02:16:17,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-23 02:16:17,129 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 15 treesize of output 1 [2021-11-23 02:16:17,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2021-11-23 02:16:17,143 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 15 treesize of output 1 [2021-11-23 02:16:17,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:16:17,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-23 02:16:17,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:16:17,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 43 [2021-11-23 02:16:17,284 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:16:17,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:16:17,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2021-11-23 02:16:17,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2021-11-23 02:16:17,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:16:17,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 62 [2021-11-23 02:16:17,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:16:17,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2021-11-23 02:16:17,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:16:17,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:16:17,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,478 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:16:17,485 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 02:16:17,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 382 treesize of output 363 [2021-11-23 02:16:17,493 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:16:17,510 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 02:16:17,511 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 363 treesize of output 366 [2021-11-23 02:16:17,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:16:17,534 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-23 02:16:17,535 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 366 treesize of output 369 [2021-11-23 02:16:17,967 INFO L354 Elim1Store]: treesize reduction 120, result has 17.2 percent of original size [2021-11-23 02:16:17,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 595 treesize of output 477 [2021-11-23 02:16:17,980 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:16:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:17,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:18,104 INFO L354 Elim1Store]: treesize reduction 476, result has 14.5 percent of original size [2021-11-23 02:16:18,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 576 treesize of output 582 [2021-11-23 02:16:18,148 INFO L354 Elim1Store]: treesize reduction 112, result has 17.0 percent of original size [2021-11-23 02:16:18,148 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 588 treesize of output 512 [2021-11-23 02:16:18,388 INFO L354 Elim1Store]: treesize reduction 108, result has 18.8 percent of original size [2021-11-23 02:16:18,389 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 1099 treesize of output 865 [2021-11-23 02:16:18,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:18,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:16:18,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:18,545 INFO L354 Elim1Store]: treesize reduction 522, result has 13.4 percent of original size [2021-11-23 02:16:18,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 1084 treesize of output 1041 [2021-11-23 02:16:18,599 INFO L354 Elim1Store]: treesize reduction 100, result has 18.7 percent of original size [2021-11-23 02:16:18,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 1077 treesize of output 933 [2021-11-23 02:16:18,973 INFO L354 Elim1Store]: treesize reduction 244, result has 13.2 percent of original size [2021-11-23 02:16:18,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 1921 treesize of output 1828 [2021-11-23 02:16:19,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:16:19,582 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 1 [2021-11-23 02:16:19,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:16:19,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 02:16:19,654 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:16:19,654 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 90 treesize of output 68 [2021-11-23 02:16:19,667 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 02:16:19,667 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 65 treesize of output 43 [2021-11-23 02:16:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:19,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:16:19,723 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:16:19,723 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 73 treesize of output 61 [2021-11-23 02:16:19,736 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:16:19,736 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 58 treesize of output 40 [2021-11-23 02:16:19,775 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-23 02:16:19,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 74 [2021-11-23 02:16:19,794 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 02:16:19,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 70 [2021-11-23 02:16:19,826 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 1 [2021-11-23 02:16:19,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:16:19,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:16:19,918 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 15 treesize of output 1 [2021-11-23 02:16:19,921 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 11 treesize of output 7 [2021-11-23 02:16:19,925 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 15 treesize of output 1 [2021-11-23 02:16:19,963 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 02:16:19,964 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 52 [2021-11-23 02:16:19,968 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 49 treesize of output 45 [2021-11-23 02:16:19,972 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 45 treesize of output 41 [2021-11-23 02:16:20,599 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:16:20,600 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 217 treesize of output 205 [2021-11-23 02:16:20,629 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-23 02:16:20,629 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 205 treesize of output 193 [2021-11-23 02:16:20,656 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 02:16:20,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 193 treesize of output 195 [2021-11-23 02:16:20,746 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 15 treesize of output 1 [2021-11-23 02:16:20,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:16:20,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 02:16:20,756 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 15 treesize of output 1 [2021-11-23 02:16:20,840 INFO L354 Elim1Store]: treesize reduction 68, result has 41.9 percent of original size [2021-11-23 02:16:20,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 184 treesize of output 221 [2021-11-23 02:16:21,081 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:16:21,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:16:21,134 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:16:21,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:16:21,204 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:16:21,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:16:21,242 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:16:21,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:16:21,293 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:16:21,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:16:21,378 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:16:21,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:16:21,431 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:16:21,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 183 treesize of output 183 [2021-11-23 02:16:21,533 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:16:23,642 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4774#(and (not (= (select |#valid| |ULTIMATE.start_main_~p~0#1.base|) 1)) (or (and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|) (exists ((|v_ULTIMATE.start_main_~p~0#1.offset_153| Int) (|v_ULTIMATE.start_main_~p~0#1.base_165| Int)) (and (<= (+ 12 |v_ULTIMATE.start_main_~p~0#1.offset_153|) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_165|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_165|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_153|)) |ULTIMATE.start_main_~p~0#1.offset|) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_165|) |v_ULTIMATE.start_main_~p~0#1.offset_153|) 2) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_165|) (+ 4 |v_ULTIMATE.start_main_~p~0#1.offset_153|)) 0) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_153|) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_165|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_153|)) |ULTIMATE.start_main_~p~0#1.base|) (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_165|) 1))) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1.base_161| Int) (|v_ULTIMATE.start_main_~p~0#1.offset_149| Int)) (and (= (select (select |#memory_int| |v_ULTIMATE.start_main_~p~0#1.base_161|) |v_ULTIMATE.start_main_~p~0#1.offset_149|) 3) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~p~0#1.base_161|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_149|)) 0) (= (select |#valid| |v_ULTIMATE.start_main_~p~0#1.base_161|) 1) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~p~0#1.base_161|) (+ 8 |v_ULTIMATE.start_main_~p~0#1.offset_149|)) 0) (<= (+ 12 |v_ULTIMATE.start_main_~p~0#1.offset_149|) (select |#length| |v_ULTIMATE.start_main_~p~0#1.base_161|)) (<= 0 |v_ULTIMATE.start_main_~p~0#1.offset_149|))))))' at error location [2021-11-23 02:16:23,642 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:16:23,642 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:16:23,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 25 [2021-11-23 02:16:23,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569222001] [2021-11-23 02:16:23,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:16:23,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-23 02:16:23,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:16:23,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-23 02:16:23,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=1887, Unknown=4, NotChecked=0, Total=2162 [2021-11-23 02:16:23,644 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand has 27 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 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) [2021-11-23 02:16:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:16:23,944 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2021-11-23 02:16:23,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 02:16:23,944 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 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 25 [2021-11-23 02:16:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:16:23,945 INFO L225 Difference]: With dead ends: 123 [2021-11-23 02:16:23,945 INFO L226 Difference]: Without dead ends: 123 [2021-11-23 02:16:23,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1019 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=344, Invalid=2202, Unknown=4, NotChecked=0, Total=2550 [2021-11-23 02:16:23,947 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 127 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 318 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:16:23,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 332 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 319 Invalid, 0 Unknown, 318 Unchecked, 0.2s Time] [2021-11-23 02:16:23,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-23 02:16:23,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 109. [2021-11-23 02:16:23,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 96 states have (on average 1.3229166666666667) internal successors, (127), 108 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:16:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2021-11-23 02:16:23,951 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 25 [2021-11-23 02:16:23,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:16:23,952 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2021-11-23 02:16:23,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.769230769230769) internal successors, (72), 26 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) [2021-11-23 02:16:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2021-11-23 02:16:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:16:23,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:16:23,953 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] [2021-11-23 02:16:23,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 02:16:24,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-23 02:16:24,168 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 36 more)] === [2021-11-23 02:16:24,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:16:24,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1531756825, now seen corresponding path program 1 times [2021-11-23 02:16:24,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:16:24,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116713060] [2021-11-23 02:16:24,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:24,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:16:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:24,404 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:16:24,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116713060] [2021-11-23 02:16:24,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116713060] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:16:24,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176654056] [2021-11-23 02:16:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:16:24,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:16:24,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:16:24,406 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:16:24,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83234ef8-88bd-4ba9-ac66-45dfd1a020a5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 02:16:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:16:24,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 02:16:24,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:16:24,569 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:16:24,569 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 11 treesize of output 11 [2021-11-23 02:16:24,573 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 [2021-11-23 02:16:24,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-23 02:16:24,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:16:24,692 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-23 02:16:24,692 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 23 treesize of output 19 [2021-11-23 02:16:24,721 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 02:16:24,721 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 40 treesize of output 20 [2021-11-23 02:16:24,753 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 02:16:24,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 49 [2021-11-23 02:16:24,763 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-23 02:16:24,763 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 59 treesize of output 54 [2021-11-23 02:16:24,893 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:16:24,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 42 [2021-11-23 02:16:24,897 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 02:16:24,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 33 treesize of output 19 [2021-11-23 02:16:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:16:24,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:16:37,436 WARN L227 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:16:48,921 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 4518 treesize of output 4470 [2021-11-23 02:16:48,942 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 127926 treesize of output 124854