./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur --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 e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:46:32,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:46:32,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:46:32,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:46:32,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:46:32,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:46:32,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:46:32,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:46:32,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:46:32,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:46:32,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:46:32,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:46:32,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:46:32,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:46:32,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:46:32,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:46:32,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:46:32,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:46:32,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:46:32,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:46:32,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:46:32,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:46:32,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:46:32,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:46:32,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:46:32,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:46:32,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:46:32,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:46:32,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:46:32,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:46:32,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:46:32,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:46:32,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:46:32,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:46:32,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:46:32,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:46:32,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:46:32,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:46:32,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:46:32,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:46:32,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:46:32,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-25 23:46:32,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:46:32,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:46:32,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:46:32,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:46:32,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:46:32,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:46:32,575 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:46:32,575 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:46:32,575 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:46:32,575 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:46:32,576 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:46:32,577 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:46:32,577 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:46:32,577 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:46:32,577 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:46:32,577 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:46:32,578 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:46:32,578 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:46:32,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 23:46:32,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 23:46:32,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:46:32,579 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:46:32,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:46:32,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:46:32,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:46:32,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:46:32,581 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 23:46:32,581 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 23:46:32,581 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 23:46:32,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:46:32,582 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:46:32,582 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:46:32,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:46:32,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:46:32,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:46:32,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:46:32,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:46:32,583 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:46:32,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:46:32,583 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:46:32,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:46:32,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:46:32,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c [2022-11-25 23:46:32,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:46:32,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:46:32,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:46:32,951 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:46:32,951 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:46:32,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2022-11-25 23:46:36,035 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:46:36,348 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:46:36,348 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2022-11-25 23:46:36,361 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/data/b58cf4aef/2ce5f1838bf643b7b7ac2b656b052966/FLAG9a54d3fe9 [2022-11-25 23:46:36,379 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/data/b58cf4aef/2ce5f1838bf643b7b7ac2b656b052966 [2022-11-25 23:46:36,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:46:36,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:46:36,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:46:36,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:46:36,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:46:36,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:36,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724ae156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36, skipping insertion in model container [2022-11-25 23:46:36,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:36,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:46:36,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:46:36,726 WARN L237 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_d8181904-6cfe-45ae-b8a0-92615dccf27c/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2022-11-25 23:46:36,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:46:36,814 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:46:36,846 WARN L237 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_d8181904-6cfe-45ae-b8a0-92615dccf27c/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2022-11-25 23:46:36,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:46:36,913 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:46:36,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36 WrapperNode [2022-11-25 23:46:36,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:46:36,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:46:36,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:46:36,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:46:36,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:36,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:36,968 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 294 [2022-11-25 23:46:36,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:46:36,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:46:36,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:46:36,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:46:36,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:36,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:36,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:36,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:37,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:37,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:37,011 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:37,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:37,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:46:37,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:46:37,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:46:37,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:46:37,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (1/1) ... [2022-11-25 23:46:37,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:46:37,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:46:37,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:46:37,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:46:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:46:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2022-11-25 23:46:37,121 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2022-11-25 23:46:37,121 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-11-25 23:46:37,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-11-25 23:46:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:46:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:46:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:46:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:46:37,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:46:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:46:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:46:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:46:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:46:37,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:46:37,336 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:46:37,338 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:46:38,061 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:46:38,148 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:46:38,148 INFO L300 CfgBuilder]: Removed 33 assume(true) statements. [2022-11-25 23:46:38,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:46:38 BoogieIcfgContainer [2022-11-25 23:46:38,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:46:38,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:46:38,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:46:38,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:46:38,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:46:36" (1/3) ... [2022-11-25 23:46:38,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc1b754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:46:38, skipping insertion in model container [2022-11-25 23:46:38,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:46:36" (2/3) ... [2022-11-25 23:46:38,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc1b754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:46:38, skipping insertion in model container [2022-11-25 23:46:38,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:46:38" (3/3) ... [2022-11-25 23:46:38,168 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort-2.i [2022-11-25 23:46:38,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:46:38,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 105 error locations. [2022-11-25 23:46:38,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:46:38,268 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@28f708f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:46:38,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-11-25 23:46:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 107 states have (on average 2.514018691588785) internal successors, (269), 227 states have internal predecessors, (269), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 23:46:38,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:46:38,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:38,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:46:38,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:38,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:38,288 INFO L85 PathProgramCache]: Analyzing trace with hash 18345167, now seen corresponding path program 1 times [2022-11-25 23:46:38,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:38,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178214804] [2022-11-25 23:46:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:38,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:38,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:38,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178214804] [2022-11-25 23:46:38,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178214804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:38,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:38,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:46:38,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989997220] [2022-11-25 23:46:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:38,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:46:38,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:38,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:46:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:38,575 INFO L87 Difference]: Start difference. First operand has 230 states, 107 states have (on average 2.514018691588785) internal successors, (269), 227 states have internal predecessors, (269), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:39,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:39,082 INFO L93 Difference]: Finished difference Result 396 states and 447 transitions. [2022-11-25 23:46:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:46:39,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-11-25 23:46:39,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:39,114 INFO L225 Difference]: With dead ends: 396 [2022-11-25 23:46:39,114 INFO L226 Difference]: Without dead ends: 394 [2022-11-25 23:46:39,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:39,120 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 181 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:39,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 479 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:46:39,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-25 23:46:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 226. [2022-11-25 23:46:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 107 states have (on average 2.1869158878504673) internal successors, (234), 223 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:39,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 251 transitions. [2022-11-25 23:46:39,208 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 251 transitions. Word has length 4 [2022-11-25 23:46:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:39,209 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 251 transitions. [2022-11-25 23:46:39,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:39,210 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 251 transitions. [2022-11-25 23:46:39,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:46:39,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:39,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:46:39,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:46:39,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:39,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash 18345168, now seen corresponding path program 1 times [2022-11-25 23:46:39,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:39,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780989263] [2022-11-25 23:46:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:39,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:39,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:39,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780989263] [2022-11-25 23:46:39,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780989263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:39,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:39,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:46:39,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122992834] [2022-11-25 23:46:39,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:39,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:46:39,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:39,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:46:39,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:39,338 INFO L87 Difference]: Start difference. First operand 226 states and 251 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:39,653 INFO L93 Difference]: Finished difference Result 360 states and 405 transitions. [2022-11-25 23:46:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:46:39,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-11-25 23:46:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:39,656 INFO L225 Difference]: With dead ends: 360 [2022-11-25 23:46:39,656 INFO L226 Difference]: Without dead ends: 360 [2022-11-25 23:46:39,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:39,658 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 148 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:39,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 471 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:46:39,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-25 23:46:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 224. [2022-11-25 23:46:39,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 107 states have (on average 2.1682242990654204) internal successors, (232), 221 states have internal predecessors, (232), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 249 transitions. [2022-11-25 23:46:39,669 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 249 transitions. Word has length 4 [2022-11-25 23:46:39,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:39,669 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 249 transitions. [2022-11-25 23:46:39,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:39,670 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 249 transitions. [2022-11-25 23:46:39,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:46:39,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:39,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:46:39,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:46:39,671 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:39,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash 568154688, now seen corresponding path program 1 times [2022-11-25 23:46:39,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:39,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631700053] [2022-11-25 23:46:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:39,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:39,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:39,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631700053] [2022-11-25 23:46:39,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631700053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:39,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:39,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:46:39,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164115519] [2022-11-25 23:46:39,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:39,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:46:39,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:39,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:46:39,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:39,699 INFO L87 Difference]: Start difference. First operand 224 states and 249 transitions. Second operand has 3 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) [2022-11-25 23:46:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:39,940 INFO L93 Difference]: Finished difference Result 349 states and 393 transitions. [2022-11-25 23:46:39,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:46:39,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2022-11-25 23:46:39,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:39,943 INFO L225 Difference]: With dead ends: 349 [2022-11-25 23:46:39,943 INFO L226 Difference]: Without dead ends: 348 [2022-11-25 23:46:39,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:39,944 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 125 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:39,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 311 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:46:39,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-11-25 23:46:39,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 227. [2022-11-25 23:46:39,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 110 states have (on average 2.1454545454545455) internal successors, (236), 224 states have internal predecessors, (236), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 253 transitions. [2022-11-25 23:46:39,955 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 253 transitions. Word has length 5 [2022-11-25 23:46:39,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:39,955 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 253 transitions. [2022-11-25 23:46:39,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-25 23:46:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 253 transitions. [2022-11-25 23:46:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:46:39,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:39,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:46:39,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:46:39,957 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:39,958 INFO L85 PathProgramCache]: Analyzing trace with hash 450363646, now seen corresponding path program 1 times [2022-11-25 23:46:39,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:39,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189687693] [2022-11-25 23:46:39,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:39,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:40,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:40,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:40,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189687693] [2022-11-25 23:46:40,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189687693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:40,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:40,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:46:40,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884347279] [2022-11-25 23:46:40,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:40,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:46:40,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:40,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:46:40,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:40,101 INFO L87 Difference]: Start difference. First operand 227 states and 253 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2022-11-25 23:46:40,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:40,353 INFO L93 Difference]: Finished difference Result 360 states and 404 transitions. [2022-11-25 23:46:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:46:40,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2022-11-25 23:46:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:40,356 INFO L225 Difference]: With dead ends: 360 [2022-11-25 23:46:40,356 INFO L226 Difference]: Without dead ends: 360 [2022-11-25 23:46:40,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:40,367 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 146 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:40,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 466 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:46:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-25 23:46:40,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 225. [2022-11-25 23:46:40,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 110 states have (on average 2.1272727272727274) internal successors, (234), 222 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 251 transitions. [2022-11-25 23:46:40,376 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 251 transitions. Word has length 6 [2022-11-25 23:46:40,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:40,377 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 251 transitions. [2022-11-25 23:46:40,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2022-11-25 23:46:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 251 transitions. [2022-11-25 23:46:40,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:46:40,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:40,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:46:40,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:46:40,378 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:40,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:40,382 INFO L85 PathProgramCache]: Analyzing trace with hash 450363645, now seen corresponding path program 1 times [2022-11-25 23:46:40,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:40,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320836453] [2022-11-25 23:46:40,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:40,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:40,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:40,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320836453] [2022-11-25 23:46:40,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320836453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:40,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:40,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:46:40,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500053213] [2022-11-25 23:46:40,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:40,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:46:40,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:40,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:46:40,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:40,439 INFO L87 Difference]: Start difference. First operand 225 states and 251 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2022-11-25 23:46:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:40,734 INFO L93 Difference]: Finished difference Result 390 states and 440 transitions. [2022-11-25 23:46:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:46:40,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2022-11-25 23:46:40,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:40,736 INFO L225 Difference]: With dead ends: 390 [2022-11-25 23:46:40,736 INFO L226 Difference]: Without dead ends: 390 [2022-11-25 23:46:40,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:40,738 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 174 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:40,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 474 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:46:40,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-11-25 23:46:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 223. [2022-11-25 23:46:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 110 states have (on average 2.109090909090909) internal successors, (232), 220 states have internal predecessors, (232), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 249 transitions. [2022-11-25 23:46:40,745 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 249 transitions. Word has length 6 [2022-11-25 23:46:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:40,746 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 249 transitions. [2022-11-25 23:46:40,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2022-11-25 23:46:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 249 transitions. [2022-11-25 23:46:40,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:46:40,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:40,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:40,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:46:40,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:40,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:40,748 INFO L85 PathProgramCache]: Analyzing trace with hash 535440203, now seen corresponding path program 1 times [2022-11-25 23:46:40,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:40,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127015405] [2022-11-25 23:46:40,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:40,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:40,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:40,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127015405] [2022-11-25 23:46:40,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127015405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:40,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:40,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:46:40,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022419860] [2022-11-25 23:46:40,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:40,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:46:40,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:40,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:46:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:40,778 INFO L87 Difference]: Start difference. First operand 223 states and 249 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:40,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:40,862 INFO L93 Difference]: Finished difference Result 229 states and 253 transitions. [2022-11-25 23:46:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:46:40,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 23:46:40,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:40,869 INFO L225 Difference]: With dead ends: 229 [2022-11-25 23:46:40,869 INFO L226 Difference]: Without dead ends: 228 [2022-11-25 23:46:40,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:46:40,871 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 5 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:40,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 415 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:46:40,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-25 23:46:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2022-11-25 23:46:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 109 states have (on average 2.110091743119266) internal successors, (230), 219 states have internal predecessors, (230), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 247 transitions. [2022-11-25 23:46:40,882 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 247 transitions. Word has length 7 [2022-11-25 23:46:40,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:40,882 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 247 transitions. [2022-11-25 23:46:40,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 247 transitions. [2022-11-25 23:46:40,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:46:40,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:40,883 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:40,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:46:40,885 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:40,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:40,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1154009547, now seen corresponding path program 1 times [2022-11-25 23:46:40,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:40,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545367247] [2022-11-25 23:46:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:40,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:41,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:41,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:41,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545367247] [2022-11-25 23:46:41,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545367247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:41,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:41,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:46:41,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060959957] [2022-11-25 23:46:41,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:41,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:46:41,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:41,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:46:41,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:46:41,028 INFO L87 Difference]: Start difference. First operand 222 states and 247 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:41,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:41,175 INFO L93 Difference]: Finished difference Result 353 states and 393 transitions. [2022-11-25 23:46:41,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:46:41,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 23:46:41,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:41,178 INFO L225 Difference]: With dead ends: 353 [2022-11-25 23:46:41,179 INFO L226 Difference]: Without dead ends: 353 [2022-11-25 23:46:41,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:46:41,180 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 535 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:41,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 380 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:46:41,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-25 23:46:41,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 222. [2022-11-25 23:46:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 109 states have (on average 2.1009174311926606) internal successors, (229), 219 states have internal predecessors, (229), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:41,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 246 transitions. [2022-11-25 23:46:41,190 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 246 transitions. Word has length 11 [2022-11-25 23:46:41,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:41,190 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 246 transitions. [2022-11-25 23:46:41,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:41,191 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 246 transitions. [2022-11-25 23:46:41,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:46:41,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:41,191 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:41,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:46:41,193 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:41,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:41,194 INFO L85 PathProgramCache]: Analyzing trace with hash -901980672, now seen corresponding path program 1 times [2022-11-25 23:46:41,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:41,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564078809] [2022-11-25 23:46:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:41,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:41,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:41,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564078809] [2022-11-25 23:46:41,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564078809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:41,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:41,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:46:41,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396594472] [2022-11-25 23:46:41,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:41,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:46:41,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:41,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:46:41,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:46:41,343 INFO L87 Difference]: Start difference. First operand 222 states and 246 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:41,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:41,635 INFO L93 Difference]: Finished difference Result 627 states and 702 transitions. [2022-11-25 23:46:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:46:41,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 23:46:41,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:41,638 INFO L225 Difference]: With dead ends: 627 [2022-11-25 23:46:41,638 INFO L226 Difference]: Without dead ends: 627 [2022-11-25 23:46:41,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:46:41,639 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1320 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:41,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 528 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:46:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-11-25 23:46:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 247. [2022-11-25 23:46:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 135 states have (on average 2.066666666666667) internal successors, (279), 244 states have internal predecessors, (279), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 295 transitions. [2022-11-25 23:46:41,648 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 295 transitions. Word has length 13 [2022-11-25 23:46:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:41,649 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 295 transitions. [2022-11-25 23:46:41,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:41,649 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 295 transitions. [2022-11-25 23:46:41,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:46:41,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:41,650 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:41,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:46:41,650 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:41,651 INFO L85 PathProgramCache]: Analyzing trace with hash -901991921, now seen corresponding path program 1 times [2022-11-25 23:46:41,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:41,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936069756] [2022-11-25 23:46:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:41,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:41,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:41,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:41,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936069756] [2022-11-25 23:46:41,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936069756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:41,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:41,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:46:41,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494986843] [2022-11-25 23:46:41,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:41,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:46:41,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:41,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:46:41,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:46:41,729 INFO L87 Difference]: Start difference. First operand 247 states and 295 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:42,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:42,216 INFO L93 Difference]: Finished difference Result 403 states and 470 transitions. [2022-11-25 23:46:42,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:46:42,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 23:46:42,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:42,219 INFO L225 Difference]: With dead ends: 403 [2022-11-25 23:46:42,219 INFO L226 Difference]: Without dead ends: 403 [2022-11-25 23:46:42,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:46:42,220 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 578 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:42,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 413 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:46:42,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-25 23:46:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 238. [2022-11-25 23:46:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 135 states have (on average 1.9777777777777779) internal successors, (267), 235 states have internal predecessors, (267), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2022-11-25 23:46:42,231 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 13 [2022-11-25 23:46:42,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:42,231 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2022-11-25 23:46:42,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:42,232 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2022-11-25 23:46:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:46:42,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:42,232 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:42,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:46:42,234 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:42,239 INFO L85 PathProgramCache]: Analyzing trace with hash -901991920, now seen corresponding path program 1 times [2022-11-25 23:46:42,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:42,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968122051] [2022-11-25 23:46:42,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:42,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:42,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:42,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968122051] [2022-11-25 23:46:42,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968122051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:42,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:42,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:46:42,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840527424] [2022-11-25 23:46:42,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:42,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:46:42,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:42,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:46:42,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:46:42,413 INFO L87 Difference]: Start difference. First operand 238 states and 283 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:42,907 INFO L93 Difference]: Finished difference Result 534 states and 596 transitions. [2022-11-25 23:46:42,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:46:42,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 23:46:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:42,909 INFO L225 Difference]: With dead ends: 534 [2022-11-25 23:46:42,909 INFO L226 Difference]: Without dead ends: 534 [2022-11-25 23:46:42,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:46:42,910 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 806 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:42,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 441 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:46:42,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-25 23:46:42,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 258. [2022-11-25 23:46:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 155 states have (on average 1.8774193548387097) internal successors, (291), 255 states have internal predecessors, (291), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:42,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 307 transitions. [2022-11-25 23:46:42,918 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 307 transitions. Word has length 13 [2022-11-25 23:46:42,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:42,919 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 307 transitions. [2022-11-25 23:46:42,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 307 transitions. [2022-11-25 23:46:42,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 23:46:42,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:42,920 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:42,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:46:42,920 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:42,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:42,921 INFO L85 PathProgramCache]: Analyzing trace with hash -256693872, now seen corresponding path program 1 times [2022-11-25 23:46:42,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:42,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254747765] [2022-11-25 23:46:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:42,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:43,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:46:43,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:43,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254747765] [2022-11-25 23:46:43,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254747765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:43,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:43,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:46:43,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576407748] [2022-11-25 23:46:43,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:43,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:46:43,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:43,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:46:43,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:46:43,051 INFO L87 Difference]: Start difference. First operand 258 states and 307 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:43,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:43,297 INFO L93 Difference]: Finished difference Result 332 states and 387 transitions. [2022-11-25 23:46:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:46:43,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 23:46:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:43,299 INFO L225 Difference]: With dead ends: 332 [2022-11-25 23:46:43,299 INFO L226 Difference]: Without dead ends: 332 [2022-11-25 23:46:43,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:46:43,300 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 96 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:43,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 662 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:46:43,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-11-25 23:46:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 257. [2022-11-25 23:46:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 155 states have (on average 1.864516129032258) internal successors, (289), 254 states have internal predecessors, (289), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 304 transitions. [2022-11-25 23:46:43,307 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 304 transitions. Word has length 20 [2022-11-25 23:46:43,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:43,308 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 304 transitions. [2022-11-25 23:46:43,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:43,308 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 304 transitions. [2022-11-25 23:46:43,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 23:46:43,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:43,309 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:43,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:46:43,309 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash -937110950, now seen corresponding path program 1 times [2022-11-25 23:46:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:43,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374721722] [2022-11-25 23:46:43,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:43,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:46:43,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:43,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374721722] [2022-11-25 23:46:43,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374721722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:43,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:43,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:46:43,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321225662] [2022-11-25 23:46:43,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:43,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:46:43,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:43,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:46:43,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:46:43,435 INFO L87 Difference]: Start difference. First operand 257 states and 304 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:43,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:43,655 INFO L93 Difference]: Finished difference Result 256 states and 301 transitions. [2022-11-25 23:46:43,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:46:43,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 23:46:43,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:43,661 INFO L225 Difference]: With dead ends: 256 [2022-11-25 23:46:43,661 INFO L226 Difference]: Without dead ends: 256 [2022-11-25 23:46:43,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:46:43,662 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 19 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:43,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 673 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:46:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-25 23:46:43,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-11-25 23:46:43,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8516129032258064) internal successors, (287), 253 states have internal predecessors, (287), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:43,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 301 transitions. [2022-11-25 23:46:43,668 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 301 transitions. Word has length 20 [2022-11-25 23:46:43,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:43,668 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 301 transitions. [2022-11-25 23:46:43,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:43,669 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 301 transitions. [2022-11-25 23:46:43,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 23:46:43,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:43,669 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:43,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:46:43,670 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:43,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:43,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1946598122, now seen corresponding path program 1 times [2022-11-25 23:46:43,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:43,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737750329] [2022-11-25 23:46:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:43,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:43,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:43,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737750329] [2022-11-25 23:46:43,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737750329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:43,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:43,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:46:43,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387606625] [2022-11-25 23:46:43,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:43,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:46:43,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:43,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:46:43,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:46:43,853 INFO L87 Difference]: Start difference. First operand 256 states and 301 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:44,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:44,274 INFO L93 Difference]: Finished difference Result 538 states and 595 transitions. [2022-11-25 23:46:44,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:46:44,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-25 23:46:44,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:44,289 INFO L225 Difference]: With dead ends: 538 [2022-11-25 23:46:44,290 INFO L226 Difference]: Without dead ends: 538 [2022-11-25 23:46:44,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:46:44,290 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1177 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:44,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 825 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:46:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-25 23:46:44,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 256. [2022-11-25 23:46:44,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8451612903225807) internal successors, (286), 253 states have internal predecessors, (286), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2022-11-25 23:46:44,303 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 23 [2022-11-25 23:46:44,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:44,303 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2022-11-25 23:46:44,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2022-11-25 23:46:44,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 23:46:44,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:44,304 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:44,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:46:44,305 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash -479719491, now seen corresponding path program 1 times [2022-11-25 23:46:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:44,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669333795] [2022-11-25 23:46:44,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:44,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:44,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:44,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:44,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669333795] [2022-11-25 23:46:44,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669333795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:44,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:44,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:46:44,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410381458] [2022-11-25 23:46:44,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:44,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:46:44,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:44,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:46:44,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:46:44,500 INFO L87 Difference]: Start difference. First operand 256 states and 300 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:44,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:44,901 INFO L93 Difference]: Finished difference Result 537 states and 593 transitions. [2022-11-25 23:46:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:46:44,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-25 23:46:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:44,904 INFO L225 Difference]: With dead ends: 537 [2022-11-25 23:46:44,904 INFO L226 Difference]: Without dead ends: 537 [2022-11-25 23:46:44,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:46:44,905 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1173 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:44,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 825 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:46:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-11-25 23:46:44,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 256. [2022-11-25 23:46:44,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8387096774193548) internal successors, (285), 253 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 299 transitions. [2022-11-25 23:46:44,912 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 299 transitions. Word has length 23 [2022-11-25 23:46:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:44,913 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 299 transitions. [2022-11-25 23:46:44,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:44,913 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 299 transitions. [2022-11-25 23:46:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 23:46:44,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:44,914 INFO L195 NwaCegarLoop]: 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] [2022-11-25 23:46:44,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:46:44,914 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:44,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:44,914 INFO L85 PathProgramCache]: Analyzing trace with hash 214784498, now seen corresponding path program 1 times [2022-11-25 23:46:44,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:44,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116221166] [2022-11-25 23:46:44,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:44,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:45,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:45,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:45,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116221166] [2022-11-25 23:46:45,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116221166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:45,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:45,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:46:45,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382715126] [2022-11-25 23:46:45,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:45,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:46:45,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:45,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:46:45,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:46:45,168 INFO L87 Difference]: Start difference. First operand 256 states and 299 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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) [2022-11-25 23:46:45,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:45,962 INFO L93 Difference]: Finished difference Result 602 states and 673 transitions. [2022-11-25 23:46:45,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:46:45,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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 [2022-11-25 23:46:45,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:45,964 INFO L225 Difference]: With dead ends: 602 [2022-11-25 23:46:45,964 INFO L226 Difference]: Without dead ends: 602 [2022-11-25 23:46:45,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:46:45,965 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1467 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:45,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 642 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:46:45,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-11-25 23:46:45,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 257. [2022-11-25 23:46:45,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8397435897435896) internal successors, (287), 254 states have internal predecessors, (287), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:45,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 301 transitions. [2022-11-25 23:46:45,977 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 301 transitions. Word has length 24 [2022-11-25 23:46:45,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:45,977 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 301 transitions. [2022-11-25 23:46:45,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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) [2022-11-25 23:46:45,978 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 301 transitions. [2022-11-25 23:46:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 23:46:45,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:45,978 INFO L195 NwaCegarLoop]: 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] [2022-11-25 23:46:45,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:46:45,979 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash 214784499, now seen corresponding path program 1 times [2022-11-25 23:46:45,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:45,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709894876] [2022-11-25 23:46:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:45,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:46,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:46,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709894876] [2022-11-25 23:46:46,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709894876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:46,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:46,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:46:46,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997800748] [2022-11-25 23:46:46,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:46,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:46:46,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:46,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:46:46,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:46:46,359 INFO L87 Difference]: Start difference. First operand 257 states and 301 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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) [2022-11-25 23:46:47,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:47,067 INFO L93 Difference]: Finished difference Result 595 states and 659 transitions. [2022-11-25 23:46:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:46:47,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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 [2022-11-25 23:46:47,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:47,070 INFO L225 Difference]: With dead ends: 595 [2022-11-25 23:46:47,070 INFO L226 Difference]: Without dead ends: 595 [2022-11-25 23:46:47,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:46:47,071 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1071 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:47,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 684 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:46:47,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-25 23:46:47,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 257. [2022-11-25 23:46:47,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8333333333333333) internal successors, (286), 254 states have internal predecessors, (286), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:47,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 300 transitions. [2022-11-25 23:46:47,078 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 300 transitions. Word has length 24 [2022-11-25 23:46:47,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:47,079 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 300 transitions. [2022-11-25 23:46:47,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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) [2022-11-25 23:46:47,079 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 300 transitions. [2022-11-25 23:46:47,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 23:46:47,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:47,080 INFO L195 NwaCegarLoop]: 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] [2022-11-25 23:46:47,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 23:46:47,080 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:47,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:47,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692204, now seen corresponding path program 1 times [2022-11-25 23:46:47,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:47,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842911478] [2022-11-25 23:46:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:47,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:47,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:47,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:47,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842911478] [2022-11-25 23:46:47,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842911478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:47,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:47,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:46:47,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281807490] [2022-11-25 23:46:47,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:47,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:46:47,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:47,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:46:47,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:46:47,331 INFO L87 Difference]: Start difference. First operand 257 states and 300 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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) [2022-11-25 23:46:48,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:48,199 INFO L93 Difference]: Finished difference Result 600 states and 671 transitions. [2022-11-25 23:46:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:46:48,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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 [2022-11-25 23:46:48,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:48,203 INFO L225 Difference]: With dead ends: 600 [2022-11-25 23:46:48,203 INFO L226 Difference]: Without dead ends: 600 [2022-11-25 23:46:48,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:46:48,203 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 998 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:48,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 869 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:46:48,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-11-25 23:46:48,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 257. [2022-11-25 23:46:48,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8269230769230769) internal successors, (285), 254 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 299 transitions. [2022-11-25 23:46:48,214 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 299 transitions. Word has length 24 [2022-11-25 23:46:48,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:48,214 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 299 transitions. [2022-11-25 23:46:48,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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) [2022-11-25 23:46:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 299 transitions. [2022-11-25 23:46:48,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 23:46:48,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:48,217 INFO L195 NwaCegarLoop]: 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] [2022-11-25 23:46:48,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 23:46:48,218 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:48,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:48,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692203, now seen corresponding path program 1 times [2022-11-25 23:46:48,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:48,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251619091] [2022-11-25 23:46:48,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:48,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:48,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:48,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251619091] [2022-11-25 23:46:48,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251619091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:48,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:48,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:46:48,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989806638] [2022-11-25 23:46:48,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:48,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:46:48,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:48,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:46:48,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:46:48,601 INFO L87 Difference]: Start difference. First operand 257 states and 299 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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) [2022-11-25 23:46:49,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:49,753 INFO L93 Difference]: Finished difference Result 707 states and 786 transitions. [2022-11-25 23:46:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:46:49,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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 [2022-11-25 23:46:49,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:49,758 INFO L225 Difference]: With dead ends: 707 [2022-11-25 23:46:49,758 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 23:46:49,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:46:49,759 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1490 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:49,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 654 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:46:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 23:46:49,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 257. [2022-11-25 23:46:49,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8205128205128205) internal successors, (284), 254 states have internal predecessors, (284), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:49,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 298 transitions. [2022-11-25 23:46:49,768 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 298 transitions. Word has length 24 [2022-11-25 23:46:49,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:49,768 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 298 transitions. [2022-11-25 23:46:49,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 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) [2022-11-25 23:46:49,769 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 298 transitions. [2022-11-25 23:46:49,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:46:49,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:49,773 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:49,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 23:46:49,773 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:49,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:49,774 INFO L85 PathProgramCache]: Analyzing trace with hash -856061257, now seen corresponding path program 1 times [2022-11-25 23:46:49,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:49,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631742906] [2022-11-25 23:46:49,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:49,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:50,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:50,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:50,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631742906] [2022-11-25 23:46:50,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631742906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:50,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:50,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:46:50,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922665312] [2022-11-25 23:46:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:50,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:46:50,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:50,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:46:50,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:46:50,311 INFO L87 Difference]: Start difference. First operand 257 states and 298 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:51,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:51,298 INFO L93 Difference]: Finished difference Result 532 states and 587 transitions. [2022-11-25 23:46:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:46:51,299 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-25 23:46:51,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:51,301 INFO L225 Difference]: With dead ends: 532 [2022-11-25 23:46:51,301 INFO L226 Difference]: Without dead ends: 532 [2022-11-25 23:46:51,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:46:51,302 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1490 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:51,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1089 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:46:51,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-11-25 23:46:51,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 258. [2022-11-25 23:46:51,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.8152866242038217) internal successors, (285), 255 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:51,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 299 transitions. [2022-11-25 23:46:51,311 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 299 transitions. Word has length 27 [2022-11-25 23:46:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:51,312 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 299 transitions. [2022-11-25 23:46:51,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:51,312 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 299 transitions. [2022-11-25 23:46:51,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:46:51,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:51,313 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:51,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 23:46:51,313 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:51,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:51,313 INFO L85 PathProgramCache]: Analyzing trace with hash -897960630, now seen corresponding path program 1 times [2022-11-25 23:46:51,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:51,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119236725] [2022-11-25 23:46:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:51,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:51,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:51,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119236725] [2022-11-25 23:46:51,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119236725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:46:51,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:46:51,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:46:51,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434406918] [2022-11-25 23:46:51,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:46:51,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:46:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:46:51,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:46:51,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:46:51,803 INFO L87 Difference]: Start difference. First operand 258 states and 299 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:52,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:46:52,751 INFO L93 Difference]: Finished difference Result 531 states and 585 transitions. [2022-11-25 23:46:52,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:46:52,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-25 23:46:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:46:52,753 INFO L225 Difference]: With dead ends: 531 [2022-11-25 23:46:52,753 INFO L226 Difference]: Without dead ends: 531 [2022-11-25 23:46:52,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:46:52,754 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1485 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:46:52,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1089 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:46:52,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-11-25 23:46:52,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 258. [2022-11-25 23:46:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.8089171974522293) internal successors, (284), 255 states have internal predecessors, (284), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:46:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions. [2022-11-25 23:46:52,762 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 298 transitions. Word has length 27 [2022-11-25 23:46:52,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:46:52,762 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 298 transitions. [2022-11-25 23:46:52,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:46:52,762 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 298 transitions. [2022-11-25 23:46:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 23:46:52,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:46:52,764 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:46:52,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 23:46:52,765 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:46:52,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:46:52,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2067233019, now seen corresponding path program 1 times [2022-11-25 23:46:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:46:52,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281440407] [2022-11-25 23:46:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:52,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:46:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:53,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:46:53,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281440407] [2022-11-25 23:46:53,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281440407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:46:53,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057034810] [2022-11-25 23:46:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:46:53,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:46:53,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:46:53,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:46:53,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:46:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:46:53,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 23:46:53,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:46:53,589 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:46:53,598 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:46:53,684 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 7 [2022-11-25 23:46:53,687 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 7 [2022-11-25 23:46:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:53,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:46:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:46:53,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057034810] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:46:53,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [717338299] [2022-11-25 23:46:53,910 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 23:46:53,910 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:46:53,914 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:46:53,920 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:46:53,920 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:46:53,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:53,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:53,995 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:46:54,013 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:46:54,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,022 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:46:54,035 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:46:54,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,060 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:46:54,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,072 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:46:54,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,088 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:46:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:46:54,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:46:54,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:46:54,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:46:54,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:46:54,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:46:54,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:46:54,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,346 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:46:54,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,428 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:46:54,428 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:46:54,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:46:54,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:46:54,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:54,589 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-25 23:46:54,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-25 23:46:54,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-25 23:46:54,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:46:54,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:46:54,787 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:46:54,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-25 23:46:54,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:46:54,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-25 23:46:54,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:54,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:54,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:54,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:55,020 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-25 23:46:55,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-11-25 23:46:55,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:55,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:55,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:55,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:55,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:55,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:55,074 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-25 23:46:55,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 621 treesize of output 624 [2022-11-25 23:46:55,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:55,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:55,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:55,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:55,136 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-25 23:46:55,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 639 treesize of output 606 [2022-11-25 23:46:55,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:55,691 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-25 23:46:55,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-25 23:46:56,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:56,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:56,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:56,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:56,581 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-11-25 23:46:56,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2133 treesize of output 1288 [2022-11-25 23:46:56,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:56,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:56,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:56,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:56,737 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-11-25 23:46:56,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 case distinctions, treesize of input 2109 treesize of output 1967 [2022-11-25 23:46:56,837 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-11-25 23:46:56,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2053 treesize of output 1908 [2022-11-25 23:46:58,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:58,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:58,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:58,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:58,210 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-11-25 23:46:58,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3937 treesize of output 2318 [2022-11-25 23:46:58,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:58,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:58,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:58,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:58,366 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-11-25 23:46:58,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 3955 treesize of output 3637 [2022-11-25 23:46:58,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:58,617 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-25 23:46:58,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3936 treesize of output 3782 [2022-11-25 23:46:58,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:58,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:46:58,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:46:58,803 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-11-25 23:46:58,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 3888 treesize of output 3620 [2022-11-25 23:47:02,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:02,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:02,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:03,144 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-11-25 23:47:03,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 14329 treesize of output 8383 [2022-11-25 23:47:03,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:03,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:03,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:03,474 INFO L321 Elim1Store]: treesize reduction 300, result has 18.9 percent of original size [2022-11-25 23:47:03,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 14291 treesize of output 13122 [2022-11-25 23:47:03,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:03,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:03,823 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-11-25 23:47:03,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 14136 treesize of output 13160 [2022-11-25 23:47:08,299 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:08,304 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:08,309 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:08,331 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:47:08,332 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:47:08,355 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:08,355 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:08,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:47:08,375 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:47:08,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:47:08,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:47:08,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:08,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:47:08,433 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-25 23:47:08,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 31 [2022-11-25 23:47:08,472 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:08,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:08,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:08,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-25 23:47:08,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:47:08,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:47:08,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:47:08,542 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:08,548 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:08,556 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:09,596 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:47:09,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:47:09,747 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:09,747 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:09,782 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:09,783 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:09,995 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:47:09,995 INFO L350 Elim1Store]: Elim1 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 418 treesize of output 421 [2022-11-25 23:47:10,022 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:47:10,023 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 410 treesize of output 381 [2022-11-25 23:47:10,198 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:47:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:10,379 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:47:10,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 726 treesize of output 723 [2022-11-25 23:47:10,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:10,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:10,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 691 treesize of output 653 [2022-11-25 23:47:10,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:10,464 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:47:10,464 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 704 treesize of output 687 [2022-11-25 23:47:11,825 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:11,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-25 23:47:11,867 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:47:11,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:11,938 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:11,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:12,084 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:12,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:12,142 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:47:12,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:12,208 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:12,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:12,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:12,311 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:47:12,381 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:47:14,679 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14798#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-25 23:47:14,680 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:47:14,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:47:14,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 13 [2022-11-25 23:47:14,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140613380] [2022-11-25 23:47:14,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:47:14,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 23:47:14,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 23:47:14,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:47:14,682 INFO L87 Difference]: Start difference. First operand 258 states and 298 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:15,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:15,150 INFO L93 Difference]: Finished difference Result 434 states and 491 transitions. [2022-11-25 23:47:15,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 23:47:15,151 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 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 28 [2022-11-25 23:47:15,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:15,152 INFO L225 Difference]: With dead ends: 434 [2022-11-25 23:47:15,152 INFO L226 Difference]: Without dead ends: 430 [2022-11-25 23:47:15,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=137, Invalid=985, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:47:15,153 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 522 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:15,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1248 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:47:15,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-11-25 23:47:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 269. [2022-11-25 23:47:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 168 states have (on average 1.7619047619047619) internal successors, (296), 266 states have internal predecessors, (296), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:47:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 310 transitions. [2022-11-25 23:47:15,160 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 310 transitions. Word has length 28 [2022-11-25 23:47:15,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:15,161 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 310 transitions. [2022-11-25 23:47:15,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:15,161 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 310 transitions. [2022-11-25 23:47:15,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 23:47:15,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:15,161 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:15,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 23:47:15,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:15,367 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:47:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:15,368 INFO L85 PathProgramCache]: Analyzing trace with hash -260397027, now seen corresponding path program 1 times [2022-11-25 23:47:15,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:15,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813115033] [2022-11-25 23:47:15,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:15,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:15,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:15,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813115033] [2022-11-25 23:47:15,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813115033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:15,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:15,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:47:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065632652] [2022-11-25 23:47:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:15,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:47:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:47:15,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:15,550 INFO L87 Difference]: Start difference. First operand 269 states and 310 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:15,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:15,973 INFO L93 Difference]: Finished difference Result 441 states and 486 transitions. [2022-11-25 23:47:15,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:47:15,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-11-25 23:47:15,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:15,977 INFO L225 Difference]: With dead ends: 441 [2022-11-25 23:47:15,977 INFO L226 Difference]: Without dead ends: 441 [2022-11-25 23:47:15,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:47:15,978 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 428 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:15,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 478 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:47:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-25 23:47:15,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 274. [2022-11-25 23:47:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 173 states have (on average 1.76878612716763) internal successors, (306), 271 states have internal predecessors, (306), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:47:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 320 transitions. [2022-11-25 23:47:15,991 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 320 transitions. Word has length 31 [2022-11-25 23:47:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:15,991 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 320 transitions. [2022-11-25 23:47:15,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 320 transitions. [2022-11-25 23:47:15,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 23:47:15,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:15,993 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:15,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 23:47:15,993 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:47:15,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:15,994 INFO L85 PathProgramCache]: Analyzing trace with hash -260397028, now seen corresponding path program 1 times [2022-11-25 23:47:15,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:15,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557114583] [2022-11-25 23:47:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:47:16,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:16,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557114583] [2022-11-25 23:47:16,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557114583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:16,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:16,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:47:16,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667934164] [2022-11-25 23:47:16,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:16,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:47:16,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:16,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:47:16,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:16,082 INFO L87 Difference]: Start difference. First operand 274 states and 320 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:16,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:16,552 INFO L93 Difference]: Finished difference Result 546 states and 628 transitions. [2022-11-25 23:47:16,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 23:47:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 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 31 [2022-11-25 23:47:16,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:16,555 INFO L225 Difference]: With dead ends: 546 [2022-11-25 23:47:16,555 INFO L226 Difference]: Without dead ends: 546 [2022-11-25 23:47:16,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:47:16,556 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 865 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:16,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 442 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:47:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-11-25 23:47:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 274. [2022-11-25 23:47:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.7428571428571429) internal successors, (305), 271 states have internal predecessors, (305), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:47:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 319 transitions. [2022-11-25 23:47:16,564 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 319 transitions. Word has length 31 [2022-11-25 23:47:16,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:16,564 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 319 transitions. [2022-11-25 23:47:16,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:16,564 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 319 transitions. [2022-11-25 23:47:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:47:16,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:16,565 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:16,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 23:47:16,565 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:47:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:16,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1131391516, now seen corresponding path program 1 times [2022-11-25 23:47:16,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:16,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562027396] [2022-11-25 23:47:16,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:16,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:16,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:16,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562027396] [2022-11-25 23:47:16,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562027396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:16,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:16,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:47:16,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736827905] [2022-11-25 23:47:16,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:16,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:47:16,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:16,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:47:16,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:16,645 INFO L87 Difference]: Start difference. First operand 274 states and 319 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:16,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:16,859 INFO L93 Difference]: Finished difference Result 371 states and 412 transitions. [2022-11-25 23:47:16,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:47:16,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-25 23:47:16,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:16,861 INFO L225 Difference]: With dead ends: 371 [2022-11-25 23:47:16,861 INFO L226 Difference]: Without dead ends: 371 [2022-11-25 23:47:16,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:47:16,862 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 711 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:16,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 667 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:47:16,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-25 23:47:16,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 274. [2022-11-25 23:47:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.737142857142857) internal successors, (304), 271 states have internal predecessors, (304), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:47:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 318 transitions. [2022-11-25 23:47:16,871 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 318 transitions. Word has length 33 [2022-11-25 23:47:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:16,871 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 318 transitions. [2022-11-25 23:47:16,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:16,872 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 318 transitions. [2022-11-25 23:47:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:47:16,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:16,872 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:16,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 23:47:16,873 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:47:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 517949580, now seen corresponding path program 1 times [2022-11-25 23:47:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:16,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222217812] [2022-11-25 23:47:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:16,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:16,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:16,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:16,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222217812] [2022-11-25 23:47:16,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222217812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:16,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:16,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:47:16,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759769030] [2022-11-25 23:47:16,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:16,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:47:16,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:16,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:47:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:16,972 INFO L87 Difference]: Start difference. First operand 274 states and 318 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:17,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:17,235 INFO L93 Difference]: Finished difference Result 480 states and 533 transitions. [2022-11-25 23:47:17,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 23:47:17,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-11-25 23:47:17,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:17,239 INFO L225 Difference]: With dead ends: 480 [2022-11-25 23:47:17,239 INFO L226 Difference]: Without dead ends: 480 [2022-11-25 23:47:17,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:47:17,240 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 973 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:17,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 776 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:47:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-25 23:47:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 274. [2022-11-25 23:47:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.7314285714285715) internal successors, (303), 271 states have internal predecessors, (303), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:47:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 317 transitions. [2022-11-25 23:47:17,249 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 317 transitions. Word has length 32 [2022-11-25 23:47:17,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:17,250 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 317 transitions. [2022-11-25 23:47:17,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 317 transitions. [2022-11-25 23:47:17,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:47:17,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:17,251 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:17,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 23:47:17,252 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:47:17,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:17,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392727, now seen corresponding path program 1 times [2022-11-25 23:47:17,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:17,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724354738] [2022-11-25 23:47:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:17,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:47:17,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:17,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724354738] [2022-11-25 23:47:17,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724354738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:17,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:17,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:47:17,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387729065] [2022-11-25 23:47:17,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:17,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:47:17,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:17,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:47:17,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:17,334 INFO L87 Difference]: Start difference. First operand 274 states and 317 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:17,807 INFO L93 Difference]: Finished difference Result 492 states and 561 transitions. [2022-11-25 23:47:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:47:17,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 33 [2022-11-25 23:47:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:17,810 INFO L225 Difference]: With dead ends: 492 [2022-11-25 23:47:17,810 INFO L226 Difference]: Without dead ends: 492 [2022-11-25 23:47:17,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:47:17,811 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 402 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:17,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 558 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:47:17,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-11-25 23:47:17,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 271. [2022-11-25 23:47:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 175 states have (on average 1.697142857142857) internal successors, (297), 268 states have internal predecessors, (297), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:47:17,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 311 transitions. [2022-11-25 23:47:17,827 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 311 transitions. Word has length 33 [2022-11-25 23:47:17,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:17,827 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 311 transitions. [2022-11-25 23:47:17,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:17,828 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 311 transitions. [2022-11-25 23:47:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 23:47:17,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:17,828 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:17,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 23:47:17,829 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:47:17,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:17,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392726, now seen corresponding path program 1 times [2022-11-25 23:47:17,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:17,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709229352] [2022-11-25 23:47:17,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:17,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:17,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:17,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709229352] [2022-11-25 23:47:17,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709229352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:17,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:17,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:47:17,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548113120] [2022-11-25 23:47:17,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:17,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:47:17,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:17,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:47:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:17,968 INFO L87 Difference]: Start difference. First operand 271 states and 311 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:18,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:18,336 INFO L93 Difference]: Finished difference Result 365 states and 404 transitions. [2022-11-25 23:47:18,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:47:18,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-11-25 23:47:18,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:18,338 INFO L225 Difference]: With dead ends: 365 [2022-11-25 23:47:18,338 INFO L226 Difference]: Without dead ends: 365 [2022-11-25 23:47:18,338 INFO L412 NwaCegarLoop]: 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 [2022-11-25 23:47:18,339 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 312 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:18,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 426 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:47:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-25 23:47:18,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 271. [2022-11-25 23:47:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 175 states have (on average 1.68) internal successors, (294), 268 states have internal predecessors, (294), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:47:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 308 transitions. [2022-11-25 23:47:18,345 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 308 transitions. Word has length 33 [2022-11-25 23:47:18,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:18,346 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 308 transitions. [2022-11-25 23:47:18,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:18,346 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 308 transitions. [2022-11-25 23:47:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 23:47:18,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:18,346 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:18,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 23:47:18,347 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:47:18,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:18,347 INFO L85 PathProgramCache]: Analyzing trace with hash -100268176, now seen corresponding path program 2 times [2022-11-25 23:47:18,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:18,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577625893] [2022-11-25 23:47:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:18,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:18,861 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:18,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:18,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577625893] [2022-11-25 23:47:18,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577625893] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:18,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242839744] [2022-11-25 23:47:18,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:47:18,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:18,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:18,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:18,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:47:19,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-25 23:47:19,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:47:19,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-25 23:47:19,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:19,047 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:19,071 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:19,071 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:19,091 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:47:19,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:47:19,130 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:19,300 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 9 [2022-11-25 23:47:19,319 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:19,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:19,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242839744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:19,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1786496294] [2022-11-25 23:47:19,508 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 23:47:19,508 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:47:19,509 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:47:19,509 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:47:19,509 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:47:19,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,552 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:19,569 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:47:19,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,579 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:47:19,588 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:47:19,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:47:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,625 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:47:19,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,635 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:47:19,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,652 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:47:19,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:47:19,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:47:19,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:47:19,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:47:19,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:47:19,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:47:19,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,809 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:47:19,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,873 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:47:19,873 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:47:19,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:47:19,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:47:19,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:19,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:19,986 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-25 23:47:19,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-25 23:47:20,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:47:20,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-25 23:47:20,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:47:20,168 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:47:20,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-25 23:47:20,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-25 23:47:20,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:47:20,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:20,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:20,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:20,371 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-25 23:47:20,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-11-25 23:47:20,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:20,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:20,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,432 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-25 23:47:20,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 627 treesize of output 594 [2022-11-25 23:47:20,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:20,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:20,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:20,484 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-25 23:47:20,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 593 treesize of output 596 [2022-11-25 23:47:20,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:20,912 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-25 23:47:20,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-25 23:47:21,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:21,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:21,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:21,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:21,655 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-11-25 23:47:21,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1462 treesize of output 893 [2022-11-25 23:47:21,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:21,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:21,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:21,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:21,793 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-11-25 23:47:21,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 case distinctions, treesize of input 1452 treesize of output 1380 [2022-11-25 23:47:21,858 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-11-25 23:47:21,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1410 treesize of output 1313 [2022-11-25 23:47:22,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:22,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:22,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:22,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:22,825 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-11-25 23:47:22,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3497 treesize of output 2086 [2022-11-25 23:47:22,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:23,142 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-25 23:47:23,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3496 treesize of output 3374 [2022-11-25 23:47:23,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:23,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:23,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:23,271 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-11-25 23:47:23,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 3460 treesize of output 3216 [2022-11-25 23:47:23,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:23,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:23,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:23,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:23,395 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-11-25 23:47:23,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 3435 treesize of output 3155 [2022-11-25 23:47:25,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:25,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:25,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:25,385 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-11-25 23:47:25,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 6984 treesize of output 4114 [2022-11-25 23:47:25,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:25,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:25,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:25,574 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-11-25 23:47:25,574 INFO L350 Elim1Store]: Elim1 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 10 case distinctions, treesize of input 6959 treesize of output 6495 [2022-11-25 23:47:25,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:25,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:25,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:25,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:25,803 INFO L321 Elim1Store]: treesize reduction 284, result has 18.2 percent of original size [2022-11-25 23:47:25,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 6960 treesize of output 6423 [2022-11-25 23:47:29,303 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:29,308 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:29,313 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:29,337 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:29,337 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:29,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 16 [2022-11-25 23:47:29,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:47:29,367 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:47:29,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:47:29,412 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-25 23:47:29,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-25 23:47:29,455 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:29,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:29,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-25 23:47:29,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:29,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:47:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:29,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-25 23:47:29,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:47:29,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:47:29,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:47:29,533 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:29,537 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:29,542 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:30,531 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:47:30,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:47:30,663 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:30,664 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:30,700 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:30,701 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:30,884 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:47:30,885 INFO L350 Elim1Store]: Elim1 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 418 treesize of output 421 [2022-11-25 23:47:30,912 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:47:30,913 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 410 treesize of output 381 [2022-11-25 23:47:31,097 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:47:31,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 852 treesize of output 802 [2022-11-25 23:47:31,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,309 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:47:31,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 857 treesize of output 850 [2022-11-25 23:47:31,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:31,366 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:47:31,366 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 831 treesize of output 814 [2022-11-25 23:47:32,994 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:32,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:33,271 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:47:33,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:33,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:47:33,499 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:47:33,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:33,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:47:33,577 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:47:33,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:33,628 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:47:33,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:33,672 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:47:33,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:33,724 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:47:33,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:33,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:33,849 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:47:33,916 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:47:36,510 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20146#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-25 23:47:36,510 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:47:36,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:47:36,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2022-11-25 23:47:36,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002314638] [2022-11-25 23:47:36,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:47:36,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 23:47:36,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 23:47:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1093, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 23:47:36,513 INFO L87 Difference]: Start difference. First operand 271 states and 308 transitions. Second operand has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:37,956 INFO L93 Difference]: Finished difference Result 580 states and 658 transitions. [2022-11-25 23:47:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:47:37,956 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-25 23:47:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:37,959 INFO L225 Difference]: With dead ends: 580 [2022-11-25 23:47:37,959 INFO L226 Difference]: Without dead ends: 580 [2022-11-25 23:47:37,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=304, Invalid=1766, Unknown=0, NotChecked=0, Total=2070 [2022-11-25 23:47:37,960 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1690 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:37,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 1353 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 23:47:37,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-11-25 23:47:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 272. [2022-11-25 23:47:37,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 176 states have (on average 1.6818181818181819) internal successors, (296), 269 states have internal predecessors, (296), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:47:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 310 transitions. [2022-11-25 23:47:37,975 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 310 transitions. Word has length 34 [2022-11-25 23:47:37,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:37,975 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 310 transitions. [2022-11-25 23:47:37,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:37,976 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 310 transitions. [2022-11-25 23:47:37,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 23:47:37,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:37,976 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:37,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:38,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-25 23:47:38,184 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:47:38,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:38,184 INFO L85 PathProgramCache]: Analyzing trace with hash -100268175, now seen corresponding path program 1 times [2022-11-25 23:47:38,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:38,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819624093] [2022-11-25 23:47:38,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:38,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:39,008 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:39,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:39,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819624093] [2022-11-25 23:47:39,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819624093] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:39,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591700219] [2022-11-25 23:47:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:39,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:39,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:39,011 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:39,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:47:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:39,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-25 23:47:39,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:39,183 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:39,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:39,243 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-25 23:47:39,254 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 23:47:39,254 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:39,290 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:47:39,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:47:39,337 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:39,346 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:39,639 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-25 23:47:39,641 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 9 [2022-11-25 23:47:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:39,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:40,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 79 [2022-11-25 23:47:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:40,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591700219] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:40,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [865834490] [2022-11-25 23:47:40,425 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 23:47:40,425 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:47:40,425 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:47:40,426 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:47:40,426 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:47:40,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,456 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:40,473 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:47:40,481 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:47:40,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,491 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:47:40,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:47:40,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,528 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:47:40,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,556 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:47:40,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,568 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:47:40,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:47:40,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:47:40,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:47:40,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:47:40,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:47:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:47:40,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,734 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:47:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,790 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:47:40,790 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:47:40,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:47:40,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:47:40,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:40,913 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-25 23:47:40,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-25 23:47:40,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-11-25 23:47:40,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:40,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-25 23:47:40,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:47:41,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,108 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:47:41,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-25 23:47:41,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-25 23:47:41,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:47:41,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,294 INFO L321 Elim1Store]: treesize reduction 79, result has 10.2 percent of original size [2022-11-25 23:47:41,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 494 treesize of output 497 [2022-11-25 23:47:41,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,348 INFO L321 Elim1Store]: treesize reduction 73, result has 17.0 percent of original size [2022-11-25 23:47:41,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 596 treesize of output 492 [2022-11-25 23:47:41,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:41,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,401 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-11-25 23:47:41,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 740 treesize of output 707 [2022-11-25 23:47:41,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:41,823 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-25 23:47:41,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1426 treesize of output 1403 [2022-11-25 23:47:42,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:42,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:42,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:42,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:42,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:42,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:42,660 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-11-25 23:47:42,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3222 treesize of output 1769 [2022-11-25 23:47:42,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:42,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:42,852 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-11-25 23:47:42,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 3203 treesize of output 2630 [2022-11-25 23:47:42,946 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-25 23:47:42,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 3066 treesize of output 2827 [2022-11-25 23:47:43,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,751 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-11-25 23:47:43,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3225 treesize of output 1764 [2022-11-25 23:47:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,956 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-11-25 23:47:43,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 3243 treesize of output 2670 [2022-11-25 23:47:44,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:44,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,098 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-11-25 23:47:44,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 3212 treesize of output 3004 [2022-11-25 23:47:44,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,396 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-25 23:47:44,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3144 treesize of output 3054 [2022-11-25 23:47:47,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:47,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:47,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:47,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:47,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:47,168 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-11-25 23:47:47,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 11524 treesize of output 6264 [2022-11-25 23:47:47,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:47,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:47,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:47,444 INFO L321 Elim1Store]: treesize reduction 400, result has 12.3 percent of original size [2022-11-25 23:47:47,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 11505 treesize of output 9491 [2022-11-25 23:47:47,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:47,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:47,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:47,643 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-11-25 23:47:47,644 INFO L350 Elim1Store]: Elim1 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 10 case distinctions, treesize of input 11381 treesize of output 10603 [2022-11-25 23:47:52,596 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:52,601 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:52,606 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:52,631 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:52,631 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:52,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 16 [2022-11-25 23:47:52,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:47:52,657 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:47:52,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:47:52,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:47:52,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,689 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:52,726 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:52,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:52,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-25 23:47:52,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-25 23:47:52,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:47:52,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:47:52,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:47:52,799 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:52,803 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:52,808 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:53,636 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:47:53,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:47:53,696 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:53,697 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:47:53,820 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:47:53,821 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 233 treesize of output 220 [2022-11-25 23:47:53,859 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:47:53,859 INFO L350 Elim1Store]: Elim1 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 221 treesize of output 230 [2022-11-25 23:47:53,950 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:47:54,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,070 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:47:54,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 330 treesize of output 343 [2022-11-25 23:47:54,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 311 treesize of output 297 [2022-11-25 23:47:54,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,134 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:47:54,135 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 324 treesize of output 319 [2022-11-25 23:47:54,538 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:54,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:54,593 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:54,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:47:54,665 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:47:54,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:47:54,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,709 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:47:54,747 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:47:57,580 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21265#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (or (not (<= 0 (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|))) (not (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)))) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-25 23:47:57,581 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:47:57,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:47:57,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 28 [2022-11-25 23:47:57,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860086916] [2022-11-25 23:47:57,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:47:57,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 23:47:57,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:57,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 23:47:57,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1942, Unknown=0, NotChecked=0, Total=2162 [2022-11-25 23:47:57,583 INFO L87 Difference]: Start difference. First operand 272 states and 310 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:01,727 INFO L93 Difference]: Finished difference Result 856 states and 954 transitions. [2022-11-25 23:48:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-25 23:48:01,727 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-25 23:48:01,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:01,731 INFO L225 Difference]: With dead ends: 856 [2022-11-25 23:48:01,731 INFO L226 Difference]: Without dead ends: 856 [2022-11-25 23:48:01,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2042 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1039, Invalid=5767, Unknown=0, NotChecked=0, Total=6806 [2022-11-25 23:48:01,733 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 3658 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:01,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 1479 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:48:01,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-11-25 23:48:01,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 288. [2022-11-25 23:48:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 195 states have (on average 1.6205128205128205) internal successors, (316), 285 states have internal predecessors, (316), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 330 transitions. [2022-11-25 23:48:01,743 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 330 transitions. Word has length 34 [2022-11-25 23:48:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:01,744 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 330 transitions. [2022-11-25 23:48:01,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 330 transitions. [2022-11-25 23:48:01,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 23:48:01,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:01,745 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:01,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:01,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-25 23:48:01,951 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:48:01,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:01,952 INFO L85 PathProgramCache]: Analyzing trace with hash -767870067, now seen corresponding path program 1 times [2022-11-25 23:48:01,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:01,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181206355] [2022-11-25 23:48:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:01,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:02,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:02,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181206355] [2022-11-25 23:48:02,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181206355] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:02,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897331662] [2022-11-25 23:48:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:02,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:02,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:02,285 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:02,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:48:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:02,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 23:48:02,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:02,492 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:02,498 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:02,621 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-25 23:48:02,623 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-25 23:48:02,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:02,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:02,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:02,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897331662] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:02,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1132478231] [2022-11-25 23:48:02,758 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-25 23:48:02,759 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:02,759 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:02,759 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:02,759 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:02,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,804 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:02,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,827 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:48:02,838 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:48:02,846 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:48:02,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:48:02,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,883 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:48:02,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,894 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:48:02,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,906 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:48:02,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:48:02,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:48:02,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:48:02,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:48:02,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:48:03,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:48:03,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,066 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:48:03,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,136 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:48:03,137 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:48:03,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:48:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:48:03,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,249 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-25 23:48:03,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-25 23:48:03,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-25 23:48:03,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:48:03,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:48:03,459 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:48:03,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-25 23:48:03,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:48:03,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-25 23:48:03,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,613 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-25 23:48:03,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-11-25 23:48:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,657 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-25 23:48:03,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 621 treesize of output 624 [2022-11-25 23:48:03,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,708 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-25 23:48:03,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 639 treesize of output 606 [2022-11-25 23:48:03,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,101 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-25 23:48:04,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-25 23:48:04,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:04,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:04,666 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-11-25 23:48:04,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1462 treesize of output 893 [2022-11-25 23:48:04,732 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-11-25 23:48:04,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1438 treesize of output 1341 [2022-11-25 23:48:04,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:04,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:04,847 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-11-25 23:48:04,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 case distinctions, treesize of input 1452 treesize of output 1380 [2022-11-25 23:48:05,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:05,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:05,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:05,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:05,286 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-11-25 23:48:05,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 1533 treesize of output 908 [2022-11-25 23:48:05,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:05,521 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-25 23:48:05,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 1532 treesize of output 1506 [2022-11-25 23:48:05,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:05,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:05,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:05,630 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-11-25 23:48:05,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1496 treesize of output 1424 [2022-11-25 23:48:05,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:05,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:05,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:05,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:05,739 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-11-25 23:48:05,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1499 treesize of output 1401 [2022-11-25 23:48:07,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:07,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:07,164 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-11-25 23:48:07,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 6103 treesize of output 3625 [2022-11-25 23:48:07,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:07,289 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-11-25 23:48:07,290 INFO L350 Elim1Store]: Elim1 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 10 case distinctions, treesize of input 6064 treesize of output 5648 [2022-11-25 23:48:07,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:07,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:07,478 INFO L321 Elim1Store]: treesize reduction 284, result has 18.2 percent of original size [2022-11-25 23:48:07,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 6065 treesize of output 5632 [2022-11-25 23:48:08,535 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:08,539 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:08,544 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:08,568 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:48:08,568 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:08,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 16 [2022-11-25 23:48:08,587 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:48:08,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:48:08,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:48:08,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:48:08,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:48:08,647 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-25 23:48:08,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 31 [2022-11-25 23:48:08,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,658 INFO L350 Elim1Store]: Elim1 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 34 treesize of output 21 [2022-11-25 23:48:08,691 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:08,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:48:08,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:48:08,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:48:08,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:48:08,739 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:08,743 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:08,748 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:09,019 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:48:09,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:48:09,131 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:48:09,131 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:09,165 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:48:09,165 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:09,310 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:48:09,310 INFO L350 Elim1Store]: Elim1 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 351 treesize of output 360 [2022-11-25 23:48:09,335 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:48:09,335 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 349 treesize of output 320 [2022-11-25 23:48:09,452 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:48:09,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,506 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:48:09,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,586 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:48:09,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 539 treesize of output 546 [2022-11-25 23:48:09,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 514 treesize of output 484 [2022-11-25 23:48:09,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:09,654 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:48:09,655 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 527 treesize of output 516 [2022-11-25 23:48:10,398 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:10,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:48:10,424 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:48:10,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:48:10,456 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:48:10,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:48:10,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:48:10,590 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:48:10,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:48:10,621 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:48:10,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:48:10,813 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:14,409 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22709#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (= |ULTIMATE.start_seq_sort_core_#in~data#1.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) (= |ULTIMATE.start_main_~data~0#1.base| |ULTIMATE.start_seq_sort_core_#in~data#1.base|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_inspect_before_~shape#1.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (not (= |ULTIMATE.start_seq_sort_core_~data#1.base| 0)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) |ULTIMATE.start_seq_sort_core_~data#1.offset|) |ULTIMATE.start_seq_sort_core_#t~mem18#1.base|) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 1) (= |ULTIMATE.start_seq_sort_core_#in~data#1.offset| |ULTIMATE.start_main_~data~0#1.offset|) (= |ULTIMATE.start_seq_sort_core_~dst~0#1.base| 0) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (or (not (<= (+ |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 4) (select |#length| |ULTIMATE.start_seq_sort_core_~next~0#1.base|))) (not (<= 0 |ULTIMATE.start_seq_sort_core_~next~0#1.offset|))) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (= (select |#valid| |ULTIMATE.start_main_~data~0#1.base|) 1) (= |ULTIMATE.start_seq_sort_core_#t~mem18#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_seq_sort_core_~data#1.base|) |ULTIMATE.start_seq_sort_core_~data#1.offset|)) (<= (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 8) (select |#length| |ULTIMATE.start_seq_sort_core_~data#1.base|)) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_seq_sort_core_~data#1.base|) (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 4)) |ULTIMATE.start_seq_sort_core_~next~0#1.offset|) (or (not (= |ULTIMATE.start_seq_sort_core_~next~0#1.base| 0)) (not (= |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 0))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= |ULTIMATE.start_seq_sort_core_~dst~0#1.offset| 0) (= |ULTIMATE.start_seq_sort_core_~data#1.offset| |ULTIMATE.start_seq_sort_core_#in~data#1.offset|) (<= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_seq_sort_core_~next~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 4))) (<= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-25 23:48:14,409 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:14,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:48:14,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 4] total 9 [2022-11-25 23:48:14,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008185022] [2022-11-25 23:48:14,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:14,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 23:48:14,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:14,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 23:48:14,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:48:14,411 INFO L87 Difference]: Start difference. First operand 288 states and 330 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:14,683 INFO L93 Difference]: Finished difference Result 349 states and 395 transitions. [2022-11-25 23:48:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:48:14,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-25 23:48:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:14,688 INFO L225 Difference]: With dead ends: 349 [2022-11-25 23:48:14,688 INFO L226 Difference]: Without dead ends: 349 [2022-11-25 23:48:14,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2022-11-25 23:48:14,690 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 97 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:14,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1011 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:48:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-25 23:48:14,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 303. [2022-11-25 23:48:14,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 210 states have (on average 1.5761904761904761) internal successors, (331), 300 states have internal predecessors, (331), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:14,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 345 transitions. [2022-11-25 23:48:14,701 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 345 transitions. Word has length 34 [2022-11-25 23:48:14,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:14,702 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 345 transitions. [2022-11-25 23:48:14,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:14,702 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 345 transitions. [2022-11-25 23:48:14,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-25 23:48:14,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:14,703 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:14,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:14,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:14,908 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:48:14,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:14,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1583015888, now seen corresponding path program 1 times [2022-11-25 23:48:14,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:14,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446540479] [2022-11-25 23:48:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:14,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:15,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:15,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446540479] [2022-11-25 23:48:15,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446540479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:15,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:15,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:48:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144517697] [2022-11-25 23:48:15,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:15,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:48:15,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:48:15,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:48:15,418 INFO L87 Difference]: Start difference. First operand 303 states and 345 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:15,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:15,992 INFO L93 Difference]: Finished difference Result 458 states and 508 transitions. [2022-11-25 23:48:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:48:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-25 23:48:15,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:15,996 INFO L225 Difference]: With dead ends: 458 [2022-11-25 23:48:15,996 INFO L226 Difference]: Without dead ends: 458 [2022-11-25 23:48:15,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-11-25 23:48:15,997 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 562 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:15,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1357 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:48:15,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-25 23:48:16,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 312. [2022-11-25 23:48:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 219 states have (on average 1.5570776255707763) internal successors, (341), 309 states have internal predecessors, (341), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:16,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 355 transitions. [2022-11-25 23:48:16,005 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 355 transitions. Word has length 36 [2022-11-25 23:48:16,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:16,006 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 355 transitions. [2022-11-25 23:48:16,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:16,006 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 355 transitions. [2022-11-25 23:48:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 23:48:16,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:16,007 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:16,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 23:48:16,007 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:48:16,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:16,007 INFO L85 PathProgramCache]: Analyzing trace with hash -268978756, now seen corresponding path program 1 times [2022-11-25 23:48:16,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:16,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351885763] [2022-11-25 23:48:16,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:16,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:48:16,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:16,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351885763] [2022-11-25 23:48:16,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351885763] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:16,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283238191] [2022-11-25 23:48:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:16,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:16,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:16,231 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:16,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:48:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:16,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 23:48:16,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:16,502 INFO L350 Elim1Store]: Elim1 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 31 treesize of output 19 [2022-11-25 23:48:16,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-25 23:48:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:48:16,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:16,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:48:16,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283238191] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:16,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [280705226] [2022-11-25 23:48:16,617 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2022-11-25 23:48:16,618 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:16,618 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:16,618 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:16,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:16,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,660 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:16,674 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:48:16,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,685 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:48:16,693 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:48:16,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,713 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:48:16,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:48:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,740 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:48:16,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,749 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:48:16,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:48:16,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:48:16,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:48:16,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:48:16,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:48:16,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:48:16,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,885 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:48:16,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,941 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:48:16,943 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:48:16,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:48:16,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:16,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:48:17,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,045 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-25 23:48:17,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-25 23:48:17,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-25 23:48:17,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:48:17,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:48:17,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,206 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:48:17,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-25 23:48:17,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:48:17,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-25 23:48:17,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,356 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-25 23:48:17,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 480 treesize of output 442 [2022-11-25 23:48:17,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,406 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-25 23:48:17,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 618 treesize of output 621 [2022-11-25 23:48:17,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,468 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-11-25 23:48:17,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 726 treesize of output 693 [2022-11-25 23:48:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,882 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-25 23:48:17,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1398 treesize of output 1383 [2022-11-25 23:48:18,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:18,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:18,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:18,546 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-11-25 23:48:18,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2541 treesize of output 1444 [2022-11-25 23:48:18,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:18,710 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-11-25 23:48:18,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 2542 treesize of output 2032 [2022-11-25 23:48:18,798 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-11-25 23:48:18,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 2425 treesize of output 2208 [2022-11-25 23:48:20,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:20,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:20,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:20,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:20,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:20,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:20,419 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-11-25 23:48:20,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 8796 treesize of output 4739 [2022-11-25 23:48:20,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:20,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:20,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:20,639 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-11-25 23:48:20,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 8814 treesize of output 6852 [2022-11-25 23:48:20,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:20,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:20,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:20,870 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-11-25 23:48:20,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 8783 treesize of output 7973 [2022-11-25 23:48:20,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:21,169 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-25 23:48:21,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 8635 treesize of output 8283 [2022-11-25 23:48:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:27,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:27,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:27,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:27,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:28,158 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-11-25 23:48:28,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 30531 treesize of output 16433 [2022-11-25 23:48:28,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:28,646 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-11-25 23:48:28,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 30212 treesize of output 23719 [2022-11-25 23:48:29,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:29,078 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-11-25 23:48:29,079 INFO L350 Elim1Store]: Elim1 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 11 case distinctions, treesize of input 29788 treesize of output 27204 [2022-11-25 23:48:39,618 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:39,622 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:39,627 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:39,649 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:48:39,649 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:48:39,673 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:48:39,673 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:39,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:48:39,693 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:48:39,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:48:39,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:39,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:48:39,740 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-25 23:48:39,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-25 23:48:39,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:39,750 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:39,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:48:39,801 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:39,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:48:39,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:48:39,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:48:39,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:48:39,848 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:39,852 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:39,856 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:40,655 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:48:40,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:48:40,768 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:48:40,768 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:40,801 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:48:40,802 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:40,927 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:48:40,957 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:48:40,958 INFO L350 Elim1Store]: Elim1 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 351 treesize of output 360 [2022-11-25 23:48:40,983 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:48:40,983 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 349 treesize of output 320 [2022-11-25 23:48:41,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,136 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:48:41,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 414 treesize of output 388 [2022-11-25 23:48:41,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,225 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:48:41,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 419 treesize of output 430 [2022-11-25 23:48:41,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,271 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:48:41,271 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 411 treesize of output 406 [2022-11-25 23:48:41,687 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:41,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:48:41,737 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 10 for LOIs [2022-11-25 23:48:41,739 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:44,003 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24412#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-25 23:48:44,003 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:44,003 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:48:44,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2022-11-25 23:48:44,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782004149] [2022-11-25 23:48:44,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:44,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:48:44,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:44,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:48:44,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=781, Unknown=0, NotChecked=0, Total=930 [2022-11-25 23:48:44,005 INFO L87 Difference]: Start difference. First operand 312 states and 355 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:44,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:44,428 INFO L93 Difference]: Finished difference Result 310 states and 349 transitions. [2022-11-25 23:48:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:48:44,428 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-25 23:48:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:44,429 INFO L225 Difference]: With dead ends: 310 [2022-11-25 23:48:44,429 INFO L226 Difference]: Without dead ends: 310 [2022-11-25 23:48:44,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 23:48:44,430 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1205 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:44,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 368 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:48:44,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-25 23:48:44,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-11-25 23:48:44,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 219 states have (on average 1.538812785388128) internal successors, (337), 307 states have internal predecessors, (337), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:44,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 349 transitions. [2022-11-25 23:48:44,437 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 349 transitions. Word has length 38 [2022-11-25 23:48:44,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:44,437 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 349 transitions. [2022-11-25 23:48:44,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:44,438 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 349 transitions. [2022-11-25 23:48:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 23:48:44,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:44,438 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:44,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:44,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:44,645 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:48:44,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:44,645 INFO L85 PathProgramCache]: Analyzing trace with hash 866023571, now seen corresponding path program 1 times [2022-11-25 23:48:44,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:44,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938760612] [2022-11-25 23:48:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:44,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:44,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:44,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:44,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938760612] [2022-11-25 23:48:44,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938760612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:44,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:44,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:48:44,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360887031] [2022-11-25 23:48:44,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:44,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:48:44,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:44,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:48:44,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:48:44,891 INFO L87 Difference]: Start difference. First operand 310 states and 349 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:45,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:45,305 INFO L93 Difference]: Finished difference Result 387 states and 422 transitions. [2022-11-25 23:48:45,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 23:48:45,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-11-25 23:48:45,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:45,307 INFO L225 Difference]: With dead ends: 387 [2022-11-25 23:48:45,307 INFO L226 Difference]: Without dead ends: 387 [2022-11-25 23:48:45,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:48:45,307 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 768 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:45,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 803 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:48:45,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-25 23:48:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 310. [2022-11-25 23:48:45,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 219 states have (on average 1.5342465753424657) internal successors, (336), 307 states have internal predecessors, (336), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 348 transitions. [2022-11-25 23:48:45,314 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 348 transitions. Word has length 39 [2022-11-25 23:48:45,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:45,314 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 348 transitions. [2022-11-25 23:48:45,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:45,314 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 348 transitions. [2022-11-25 23:48:45,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 23:48:45,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:45,315 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:45,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 23:48:45,316 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:48:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:45,316 INFO L85 PathProgramCache]: Analyzing trace with hash -543981640, now seen corresponding path program 2 times [2022-11-25 23:48:45,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:45,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263037172] [2022-11-25 23:48:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:45,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:45,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:48:45,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:45,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263037172] [2022-11-25 23:48:45,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263037172] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:45,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189094801] [2022-11-25 23:48:45,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:48:45,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:45,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:45,779 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:45,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:48:45,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:48:45,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:48:45,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 23:48:45,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:46,048 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 7 [2022-11-25 23:48:46,051 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 7 [2022-11-25 23:48:46,064 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:48:46,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:48:46,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189094801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:46,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:48:46,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-25 23:48:46,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535958754] [2022-11-25 23:48:46,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:46,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:48:46,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:46,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:48:46,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-25 23:48:46,066 INFO L87 Difference]: Start difference. First operand 310 states and 348 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:46,348 INFO L93 Difference]: Finished difference Result 347 states and 386 transitions. [2022-11-25 23:48:46,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:48:46,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 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 40 [2022-11-25 23:48:46,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:46,350 INFO L225 Difference]: With dead ends: 347 [2022-11-25 23:48:46,351 INFO L226 Difference]: Without dead ends: 347 [2022-11-25 23:48:46,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:48:46,351 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 118 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:46,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 780 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:48:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-11-25 23:48:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 295. [2022-11-25 23:48:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 204 states have (on average 1.5686274509803921) internal successors, (320), 292 states have internal predecessors, (320), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 332 transitions. [2022-11-25 23:48:46,358 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 332 transitions. Word has length 40 [2022-11-25 23:48:46,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:46,359 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 332 transitions. [2022-11-25 23:48:46,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 332 transitions. [2022-11-25 23:48:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 23:48:46,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:46,360 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:46,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-25 23:48:46,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:46,566 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:48:46,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:46,567 INFO L85 PathProgramCache]: Analyzing trace with hash -975101704, now seen corresponding path program 1 times [2022-11-25 23:48:46,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:46,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520914218] [2022-11-25 23:48:46,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:46,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:48:46,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:46,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520914218] [2022-11-25 23:48:46,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520914218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:46,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:46,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:48:46,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994097518] [2022-11-25 23:48:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:46,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:48:46,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:46,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:48:46,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:48:46,710 INFO L87 Difference]: Start difference. First operand 295 states and 332 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:47,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:47,125 INFO L93 Difference]: Finished difference Result 330 states and 367 transitions. [2022-11-25 23:48:47,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 23:48:47,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 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 41 [2022-11-25 23:48:47,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:47,127 INFO L225 Difference]: With dead ends: 330 [2022-11-25 23:48:47,127 INFO L226 Difference]: Without dead ends: 330 [2022-11-25 23:48:47,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:48:47,128 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 144 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:47,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 787 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:48:47,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-11-25 23:48:47,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 300. [2022-11-25 23:48:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 211 states have (on average 1.5355450236966826) internal successors, (324), 297 states have internal predecessors, (324), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 336 transitions. [2022-11-25 23:48:47,135 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 336 transitions. Word has length 41 [2022-11-25 23:48:47,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:47,135 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 336 transitions. [2022-11-25 23:48:47,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:47,136 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 336 transitions. [2022-11-25 23:48:47,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 23:48:47,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:47,136 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:47,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 23:48:47,137 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:48:47,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:47,137 INFO L85 PathProgramCache]: Analyzing trace with hash -975101703, now seen corresponding path program 1 times [2022-11-25 23:48:47,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:47,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655753360] [2022-11-25 23:48:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:47,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:47,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:47,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:47,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655753360] [2022-11-25 23:48:47,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655753360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:47,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:47,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:48:47,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659267676] [2022-11-25 23:48:47,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:47,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 23:48:47,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:47,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 23:48:47,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:48:47,499 INFO L87 Difference]: Start difference. First operand 300 states and 336 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:48,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:48,138 INFO L93 Difference]: Finished difference Result 380 states and 415 transitions. [2022-11-25 23:48:48,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:48:48,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-11-25 23:48:48,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:48,140 INFO L225 Difference]: With dead ends: 380 [2022-11-25 23:48:48,141 INFO L226 Difference]: Without dead ends: 380 [2022-11-25 23:48:48,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-11-25 23:48:48,141 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 950 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:48,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 810 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:48:48,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-11-25 23:48:48,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 303. [2022-11-25 23:48:48,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.52803738317757) internal successors, (327), 300 states have internal predecessors, (327), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:48:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 339 transitions. [2022-11-25 23:48:48,148 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 339 transitions. Word has length 41 [2022-11-25 23:48:48,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:48,149 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 339 transitions. [2022-11-25 23:48:48,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 339 transitions. [2022-11-25 23:48:48,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 23:48:48,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:48,150 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:48,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-25 23:48:48,150 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:48:48,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:48,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1768846581, now seen corresponding path program 1 times [2022-11-25 23:48:48,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:48,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162120101] [2022-11-25 23:48:48,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:48,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:49,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:49,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:49,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162120101] [2022-11-25 23:48:49,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162120101] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:49,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10578135] [2022-11-25 23:48:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:49,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:49,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:49,060 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:49,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:48:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:49,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-25 23:48:49,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:49,298 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:49,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:48:49,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:49,370 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 21 [2022-11-25 23:48:49,413 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 23:48:49,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-25 23:48:49,451 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 17 [2022-11-25 23:48:49,462 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 17 [2022-11-25 23:48:49,511 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:48:49,511 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 21 [2022-11-25 23:48:49,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-25 23:48:49,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:49,560 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 25 [2022-11-25 23:48:49,568 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:49,876 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-25 23:48:50,179 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 23:48:50,179 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2022-11-25 23:48:50,183 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:50,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:50,705 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:48:50,705 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 33 [2022-11-25 23:48:51,097 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:48:51,098 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 53 [2022-11-25 23:48:51,104 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 139 [2022-11-25 23:48:51,122 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:48:51,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 141 treesize of output 119 [2022-11-25 23:48:51,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 93 [2022-11-25 23:48:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:51,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10578135] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:51,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1123233859] [2022-11-25 23:48:51,427 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2022-11-25 23:48:51,427 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:51,427 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:51,427 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:51,428 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:51,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,475 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:48:51,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,491 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:48:51,498 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:48:51,505 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:48:51,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,524 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:48:51,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:48:51,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,548 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:48:51,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,561 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:48:51,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:48:51,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:48:51,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:48:51,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:48:51,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:48:51,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:48:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,695 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:48:51,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,760 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:48:51,760 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:48:51,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:48:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:48:51,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:51,862 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-25 23:48:51,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-25 23:48:51,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-25 23:48:51,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:48:51,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:51,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:48:52,020 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:48:52,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-25 23:48:52,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-25 23:48:52,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:48:52,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:52,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:52,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:52,179 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-25 23:48:52,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-11-25 23:48:52,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:52,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:52,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,240 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-25 23:48:52,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 627 treesize of output 594 [2022-11-25 23:48:52,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:52,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:52,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:52,291 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-25 23:48:52,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 593 treesize of output 596 [2022-11-25 23:48:52,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:52,746 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-25 23:48:52,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-25 23:48:53,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:53,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:53,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:53,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:53,328 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-11-25 23:48:53,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1572 treesize of output 983 [2022-11-25 23:48:53,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:53,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:53,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:53,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:53,464 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-11-25 23:48:53,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 1562 treesize of output 1421 [2022-11-25 23:48:53,563 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-11-25 23:48:53,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1520 treesize of output 1381 [2022-11-25 23:48:54,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:54,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:54,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:54,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:54,744 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-11-25 23:48:54,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5738 treesize of output 3453 [2022-11-25 23:48:54,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:54,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:54,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:54,921 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-11-25 23:48:54,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 5725 treesize of output 5131 [2022-11-25 23:48:55,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:55,238 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-25 23:48:55,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5625 treesize of output 5377 [2022-11-25 23:48:55,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:55,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:55,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:55,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:55,458 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-11-25 23:48:55,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 5620 treesize of output 4911 [2022-11-25 23:48:58,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:58,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:58,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:58,502 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-11-25 23:48:58,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 13292 treesize of output 7932 [2022-11-25 23:48:58,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:58,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:58,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:58,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:58,773 INFO L321 Elim1Store]: treesize reduction 348, result has 15.3 percent of original size [2022-11-25 23:48:58,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 13170 treesize of output 11600 [2022-11-25 23:48:58,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:58,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:58,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:59,013 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-11-25 23:48:59,014 INFO L350 Elim1Store]: Elim1 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 11 case distinctions, treesize of input 13029 treesize of output 11795 [2022-11-25 23:49:04,937 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:04,941 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:04,945 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:04,969 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:49:04,969 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:49:04,990 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:49:04,990 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:05,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:49:05,010 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:49:05,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:49:05,056 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:49:05,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:49:05,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:05,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:49:05,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-25 23:49:05,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:05,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-25 23:49:05,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-25 23:49:05,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:49:05,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:49:05,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:49:05,134 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:05,139 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:05,145 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:06,060 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:49:06,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:49:06,176 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:49:06,176 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:06,208 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:49:06,210 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:06,329 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:49:06,351 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:49:06,351 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 355 treesize of output 326 [2022-11-25 23:49:06,381 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:49:06,382 INFO L350 Elim1Store]: Elim1 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 335 treesize of output 344 [2022-11-25 23:49:06,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:06,586 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:49:06,586 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 667 treesize of output 656 [2022-11-25 23:49:06,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:06,665 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:49:06,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 647 treesize of output 646 [2022-11-25 23:49:06,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:06,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:06,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 614 treesize of output 576 [2022-11-25 23:49:07,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:49:07,394 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:49:07,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:49:07,496 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:49:07,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:49:07,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:07,567 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:49:07,607 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 49 for LOIs [2022-11-25 23:49:07,620 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:49:11,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28213#(and (<= 0 |#NULL.base|) (or (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| Int)) (and (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|)))) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-25 23:49:11,663 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:49:11,663 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:49:11,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 39 [2022-11-25 23:49:11,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500321211] [2022-11-25 23:49:11,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:49:11,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-25 23:49:11,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:11,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-25 23:49:11,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=3530, Unknown=3, NotChecked=0, Total=3782 [2022-11-25 23:49:11,666 INFO L87 Difference]: Start difference. First operand 303 states and 339 transitions. Second operand has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:49:26,550 WARN L233 SmtUtils]: Spent 12.25s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:29,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 23:49:30,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:30,934 INFO L93 Difference]: Finished difference Result 586 states and 644 transitions. [2022-11-25 23:49:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:49:30,935 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-25 23:49:30,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:30,938 INFO L225 Difference]: With dead ends: 586 [2022-11-25 23:49:30,938 INFO L226 Difference]: Without dead ends: 586 [2022-11-25 23:49:30,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=818, Invalid=5984, Unknown=4, NotChecked=0, Total=6806 [2022-11-25 23:49:30,940 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 3598 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 65 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3600 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:30,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3600 Valid, 3367 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2727 Invalid, 7 Unknown, 0 Unchecked, 5.0s Time] [2022-11-25 23:49:30,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-11-25 23:49:30,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 303. [2022-11-25 23:49:30,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.5233644859813085) internal successors, (326), 300 states have internal predecessors, (326), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:49:30,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 338 transitions. [2022-11-25 23:49:30,949 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 338 transitions. Word has length 44 [2022-11-25 23:49:30,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:30,949 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 338 transitions. [2022-11-25 23:49:30,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:49:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 338 transitions. [2022-11-25 23:49:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 23:49:30,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:30,950 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:49:30,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:49:31,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-25 23:49:31,157 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:49:31,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash 99803102, now seen corresponding path program 1 times [2022-11-25 23:49:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:31,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189333732] [2022-11-25 23:49:31,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:31,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:32,103 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:49:32,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:32,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189333732] [2022-11-25 23:49:32,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189333732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:49:32,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188368204] [2022-11-25 23:49:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:32,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:49:32,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:49:32,105 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:49:32,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:49:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:32,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-25 23:49:32,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:49:32,348 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:32,402 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:32,407 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:32,474 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:49:32,474 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:32,524 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-25 23:49:32,534 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-25 23:49:32,552 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 23:49:32,553 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:32,559 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-25 23:49:32,566 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-25 23:49:32,615 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-25 23:49:32,623 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 18 [2022-11-25 23:49:32,637 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:32,647 INFO L350 Elim1Store]: Elim1 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 26 [2022-11-25 23:49:33,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:33,138 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-11-25 23:49:33,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 33 [2022-11-25 23:49:33,148 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 23:49:33,148 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 31 treesize of output 16 [2022-11-25 23:49:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:49:33,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:49:33,857 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:49:33,858 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 23:49:33,867 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:49:33,867 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 23:49:36,444 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:49:36,445 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2022-11-25 23:49:36,450 INFO L350 Elim1Store]: Elim1 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 140 treesize of output 122 [2022-11-25 23:49:36,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2022-11-25 23:49:36,470 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:49:36,470 INFO L350 Elim1Store]: Elim1 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 116 treesize of output 106 [2022-11-25 23:49:36,576 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:49:36,576 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2022-11-25 23:49:36,583 INFO L350 Elim1Store]: Elim1 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 140 treesize of output 122 [2022-11-25 23:49:36,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 110 [2022-11-25 23:49:36,602 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:49:36,602 INFO L350 Elim1Store]: Elim1 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 116 treesize of output 106 [2022-11-25 23:49:37,159 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:49:37,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188368204] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:49:37,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [788803803] [2022-11-25 23:49:37,162 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-25 23:49:37,162 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:49:37,162 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:49:37,162 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:49:37,163 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:49:37,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,193 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:37,208 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:49:37,215 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:49:37,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,225 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:49:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,244 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:49:37,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,256 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:49:37,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:49:37,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,286 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:49:37,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:49:37,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:49:37,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:49:37,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:49:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:49:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:49:37,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,442 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:49:37,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,498 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:49:37,498 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:49:37,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:49:37,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:49:37,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:37,608 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-25 23:49:37,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-25 23:49:37,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-11-25 23:49:37,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-25 23:49:37,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:49:37,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,819 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:49:37,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-25 23:49:37,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:49:37,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-25 23:49:37,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:37,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:37,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:37,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:37,998 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-25 23:49:37,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-11-25 23:49:38,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:38,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:38,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:38,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:38,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:38,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:38,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:38,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:38,062 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-25 23:49:38,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 638 treesize of output 641 [2022-11-25 23:49:38,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:38,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:38,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:38,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:38,136 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-11-25 23:49:38,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 752 treesize of output 719 [2022-11-25 23:49:38,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:38,589 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-25 23:49:38,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1450 treesize of output 1415 [2022-11-25 23:49:39,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:39,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:39,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:39,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:39,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:39,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:39,187 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-11-25 23:49:39,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1706 treesize of output 961 [2022-11-25 23:49:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:39,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:39,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:39,358 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-11-25 23:49:39,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 1727 treesize of output 1442 [2022-11-25 23:49:39,424 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-25 23:49:39,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1630 treesize of output 1527 [2022-11-25 23:49:40,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,345 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-11-25 23:49:40,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 4587 treesize of output 2492 [2022-11-25 23:49:40,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,563 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-11-25 23:49:40,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 4605 treesize of output 3740 [2022-11-25 23:49:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,718 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-11-25 23:49:40,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 4574 treesize of output 4294 [2022-11-25 23:49:40,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:41,051 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-25 23:49:41,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 4506 treesize of output 4316 [2022-11-25 23:49:45,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:45,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:45,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:45,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:45,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:45,284 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-11-25 23:49:45,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 18379 treesize of output 9801 [2022-11-25 23:49:45,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:45,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:45,666 INFO L321 Elim1Store]: treesize reduction 416, result has 13.2 percent of original size [2022-11-25 23:49:45,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 18240 treesize of output 14766 [2022-11-25 23:49:45,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:45,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:45,938 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-11-25 23:49:45,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 17956 treesize of output 16866 [2022-11-25 23:49:51,231 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:51,238 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:51,243 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:51,279 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:49:51,280 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:49:51,320 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:49:51,320 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:51,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:49:51,348 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:49:51,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:49:51,429 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:49:51,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:49:51,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:51,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-25 23:49:51,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-25 23:49:51,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-11-25 23:49:51,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:51,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-25 23:49:51,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:49:51,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:49:51,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:49:51,537 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:51,542 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:51,548 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:52,439 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:49:52,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:49:52,614 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:49:52,614 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:52,645 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:49:52,645 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:52,687 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:49:52,688 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:49:52,830 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:49:52,858 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:49:52,858 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 475 treesize of output 430 [2022-11-25 23:49:52,895 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:49:52,895 INFO L350 Elim1Store]: Elim1 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 447 treesize of output 456 [2022-11-25 23:49:53,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:53,112 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:49:53,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:53,195 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:49:53,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 779 treesize of output 774 [2022-11-25 23:49:53,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:53,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:53,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 742 treesize of output 688 [2022-11-25 23:49:53,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:53,276 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:49:53,277 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 755 treesize of output 744 [2022-11-25 23:49:54,003 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:49:54,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:49:54,044 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:49:54,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:49:54,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:49:54,113 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:49:54,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:49:54,205 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 32 for LOIs [2022-11-25 23:49:54,212 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:49:58,257 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29462#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) 0) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3| 4) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|)))) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-25 23:49:58,257 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:49:58,257 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:49:58,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 13] total 35 [2022-11-25 23:49:58,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245578330] [2022-11-25 23:49:58,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:49:58,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 23:49:58,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:58,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 23:49:58,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=2682, Unknown=1, NotChecked=0, Total=2862 [2022-11-25 23:49:58,260 INFO L87 Difference]: Start difference. First operand 303 states and 338 transitions. Second operand has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:50:05,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:05,359 INFO L93 Difference]: Finished difference Result 647 states and 700 transitions. [2022-11-25 23:50:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-25 23:50:05,359 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-25 23:50:05,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:05,363 INFO L225 Difference]: With dead ends: 647 [2022-11-25 23:50:05,363 INFO L226 Difference]: Without dead ends: 643 [2022-11-25 23:50:05,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=659, Invalid=6650, Unknown=1, NotChecked=0, Total=7310 [2022-11-25 23:50:05,365 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 4350 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4352 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 3024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:05,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4352 Valid, 4166 Invalid, 3024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 23:50:05,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-11-25 23:50:05,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 329. [2022-11-25 23:50:05,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4708333333333334) internal successors, (353), 326 states have internal predecessors, (353), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:50:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 365 transitions. [2022-11-25 23:50:05,374 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 365 transitions. Word has length 44 [2022-11-25 23:50:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:05,374 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 365 transitions. [2022-11-25 23:50:05,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:50:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 365 transitions. [2022-11-25 23:50:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 23:50:05,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:05,375 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:50:05,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:50:05,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-25 23:50:05,582 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:50:05,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:05,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1904378488, now seen corresponding path program 1 times [2022-11-25 23:50:05,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:05,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937639978] [2022-11-25 23:50:05,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:05,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:50:05,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:05,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937639978] [2022-11-25 23:50:05,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937639978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:50:05,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:50:05,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:50:05,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171859356] [2022-11-25 23:50:05,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:50:05,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:50:05,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:05,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:50:05,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:50:05,885 INFO L87 Difference]: Start difference. First operand 329 states and 365 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:50:06,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:06,477 INFO L93 Difference]: Finished difference Result 349 states and 385 transitions. [2022-11-25 23:50:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 23:50:06,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 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 44 [2022-11-25 23:50:06,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:06,479 INFO L225 Difference]: With dead ends: 349 [2022-11-25 23:50:06,479 INFO L226 Difference]: Without dead ends: 349 [2022-11-25 23:50:06,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:50:06,480 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 140 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:06,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1214 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:50:06,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-25 23:50:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 328. [2022-11-25 23:50:06,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 239 states have (on average 1.4686192468619246) internal successors, (351), 325 states have internal predecessors, (351), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:50:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 363 transitions. [2022-11-25 23:50:06,486 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 363 transitions. Word has length 44 [2022-11-25 23:50:06,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:06,487 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 363 transitions. [2022-11-25 23:50:06,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:50:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 363 transitions. [2022-11-25 23:50:06,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 23:50:06,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:06,488 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:50:06,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-25 23:50:06,488 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:50:06,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115697, now seen corresponding path program 1 times [2022-11-25 23:50:06,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:06,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869196763] [2022-11-25 23:50:06,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:06,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:07,831 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:50:07,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:07,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869196763] [2022-11-25 23:50:07,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869196763] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:50:07,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044622884] [2022-11-25 23:50:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:07,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:50:07,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:50:07,834 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:50:07,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 23:50:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:08,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-25 23:50:08,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:50:08,038 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:08,085 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:50:08,086 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:08,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:50:08,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:08,202 INFO L350 Elim1Store]: Elim1 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 31 treesize of output 26 [2022-11-25 23:50:08,311 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 23:50:08,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-25 23:50:08,399 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 30 [2022-11-25 23:50:08,424 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 30 [2022-11-25 23:50:08,467 INFO L321 Elim1Store]: treesize reduction 38, result has 48.6 percent of original size [2022-11-25 23:50:08,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 50 [2022-11-25 23:50:08,626 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:50:08,626 INFO L350 Elim1Store]: Elim1 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 64 treesize of output 62 [2022-11-25 23:50:08,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 38 [2022-11-25 23:50:08,872 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:08,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:08,881 INFO L350 Elim1Store]: Elim1 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 99 treesize of output 82 [2022-11-25 23:50:10,652 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-25 23:50:11,625 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 23:50:11,625 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 40 [2022-11-25 23:50:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:50:11,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:50:12,577 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:50:12,578 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 34 [2022-11-25 23:50:13,070 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:50:13,070 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 60 [2022-11-25 23:50:13,077 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 356 [2022-11-25 23:50:13,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 352 treesize of output 340 [2022-11-25 23:50:13,109 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:50:13,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 346 treesize of output 280 [2022-11-25 23:50:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:50:18,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044622884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:50:18,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1483979819] [2022-11-25 23:50:18,016 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-25 23:50:18,016 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:50:18,016 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:50:18,017 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:50:18,017 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:50:18,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,052 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:18,069 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:50:18,076 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:50:18,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,085 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:50:18,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,105 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:50:18,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,118 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:50:18,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,128 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:50:18,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:50:18,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:50:18,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:50:18,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:50:18,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:50:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:50:18,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:50:18,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,294 INFO L350 Elim1Store]: Elim1 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 53 treesize of output 56 [2022-11-25 23:50:18,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,361 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-25 23:50:18,361 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 178 treesize of output 142 [2022-11-25 23:50:18,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2022-11-25 23:50:18,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2022-11-25 23:50:18,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,477 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-25 23:50:18,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 214 treesize of output 162 [2022-11-25 23:50:18,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 64 [2022-11-25 23:50:18,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 100 [2022-11-25 23:50:18,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:50:18,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,674 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:50:18,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-25 23:50:18,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:50:18,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-25 23:50:18,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,845 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-25 23:50:18,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-11-25 23:50:18,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,906 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-25 23:50:18,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 638 treesize of output 605 [2022-11-25 23:50:18,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:18,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:18,958 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-25 23:50:18,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 604 treesize of output 607 [2022-11-25 23:50:19,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:19,399 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-25 23:50:19,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1426 treesize of output 1403 [2022-11-25 23:50:20,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:20,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:20,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:20,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:20,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:20,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:20,234 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-11-25 23:50:20,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3502 treesize of output 1989 [2022-11-25 23:50:20,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:20,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:20,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:20,420 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-11-25 23:50:20,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 3483 treesize of output 2753 [2022-11-25 23:50:20,528 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-11-25 23:50:20,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 3346 treesize of output 3017 [2022-11-25 23:50:21,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:21,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:21,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:21,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:21,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:21,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:22,038 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-11-25 23:50:22,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6570 treesize of output 3663 [2022-11-25 23:50:22,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:22,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:22,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:22,392 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-11-25 23:50:22,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 6588 treesize of output 5186 [2022-11-25 23:50:22,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:22,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:22,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:22,668 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-11-25 23:50:22,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 6557 treesize of output 5927 [2022-11-25 23:50:22,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:23,112 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-25 23:50:23,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6409 treesize of output 6077 [2022-11-25 23:50:28,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:28,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:28,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:28,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:28,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:28,237 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-11-25 23:50:28,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 22099 treesize of output 12219 [2022-11-25 23:50:28,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:28,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:28,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:28,659 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-11-25 23:50:28,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 21880 treesize of output 17357 [2022-11-25 23:50:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:28,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:28,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:50:29,009 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-11-25 23:50:29,010 INFO L350 Elim1Store]: Elim1 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 11 case distinctions, treesize of input 21756 treesize of output 19820 [2022-11-25 23:50:35,896 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:35,901 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:35,906 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:35,935 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:50:35,935 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:50:35,960 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:50:35,960 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:35,974 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:50:35,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:50:35,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:50:36,027 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-25 23:50:36,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-25 23:50:36,069 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:50:36,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:50:36,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:36,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:50:36,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:36,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-25 23:50:36,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-25 23:50:36,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:50:36,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:50:36,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:50:36,143 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:36,147 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:36,152 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:36,992 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:50:36,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:50:37,049 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:50:37,049 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:50:37,159 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:50:37,192 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:50:37,193 INFO L350 Elim1Store]: Elim1 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 229 treesize of output 238 [2022-11-25 23:50:37,218 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:50:37,219 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 227 treesize of output 214 [2022-11-25 23:50:37,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:37,414 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:50:37,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 330 treesize of output 343 [2022-11-25 23:50:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:37,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:37,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 311 treesize of output 297 [2022-11-25 23:50:37,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:37,480 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:50:37,480 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 324 treesize of output 319 [2022-11-25 23:50:37,716 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:50:37,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:50:37,775 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:50:37,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:50:37,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:50:37,807 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:50:37,824 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:50:43,252 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31532#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (= |ULTIMATE.start_inspect_before_#t~mem29#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_inspect_before_#t~mem29#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|)) (not (= |ULTIMATE.start_inspect_before_~shape#1.base| 0))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_#t~mem29#1.base|) 1)) (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-25 23:50:43,252 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:50:43,252 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:50:43,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 17] total 45 [2022-11-25 23:50:43,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115967665] [2022-11-25 23:50:43,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:50:43,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-25 23:50:43,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:43,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-25 23:50:43,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=4497, Unknown=4, NotChecked=0, Total=4830 [2022-11-25 23:50:43,255 INFO L87 Difference]: Start difference. First operand 328 states and 363 transitions. Second operand has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 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) [2022-11-25 23:50:57,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:57,518 INFO L93 Difference]: Finished difference Result 591 states and 646 transitions. [2022-11-25 23:50:57,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 23:50:57,518 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 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) Word has length 45 [2022-11-25 23:50:57,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:57,520 INFO L225 Difference]: With dead ends: 591 [2022-11-25 23:50:57,520 INFO L226 Difference]: Without dead ends: 591 [2022-11-25 23:50:57,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2451 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=1092, Invalid=7826, Unknown=12, NotChecked=0, Total=8930 [2022-11-25 23:50:57,523 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 3753 mSDsluCounter, 3467 mSDsCounter, 0 mSdLazyCounter, 3976 mSolverCounterSat, 129 mSolverCounterUnsat, 41 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 3668 SdHoareTripleChecker+Invalid, 4146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3976 IncrementalHoareTripleChecker+Invalid, 41 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:57,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 3668 Invalid, 4146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3976 Invalid, 41 Unknown, 0 Unchecked, 5.9s Time] [2022-11-25 23:50:57,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-11-25 23:50:57,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 329. [2022-11-25 23:50:57,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4708333333333334) internal successors, (353), 326 states have internal predecessors, (353), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:50:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 365 transitions. [2022-11-25 23:50:57,531 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 365 transitions. Word has length 45 [2022-11-25 23:50:57,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:57,532 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 365 transitions. [2022-11-25 23:50:57,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 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) [2022-11-25 23:50:57,532 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 365 transitions. [2022-11-25 23:50:57,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 23:50:57,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:57,533 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:50:57,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 23:50:57,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-25 23:50:57,740 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:50:57,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:57,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115698, now seen corresponding path program 1 times [2022-11-25 23:50:57,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:57,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858811063] [2022-11-25 23:50:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:57,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:50:59,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:59,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858811063] [2022-11-25 23:50:59,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858811063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:50:59,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863192655] [2022-11-25 23:50:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:59,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:50:59,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:50:59,783 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:50:59,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 23:50:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:59,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-25 23:50:59,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:50:59,995 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:00,049 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:51:00,049 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:00,061 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-25 23:51:00,112 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:00,119 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:51:00,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:00,179 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 31 [2022-11-25 23:51:00,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:00,191 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:00,294 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 23:51:00,294 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-25 23:51:00,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 23:51:00,384 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 37 [2022-11-25 23:51:00,403 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-25 23:51:00,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:00,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 23:51:00,445 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 37 [2022-11-25 23:51:00,466 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-25 23:51:00,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-25 23:51:00,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:51:00,559 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 30 [2022-11-25 23:51:00,572 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-25 23:51:00,594 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 30 [2022-11-25 23:51:00,605 INFO L350 Elim1Store]: Elim1 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 26 [2022-11-25 23:51:01,722 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:01,722 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 45 [2022-11-25 23:51:01,732 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 23:51:01,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-11-25 23:51:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:51:01,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:51:02,528 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:02,528 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-25 23:51:02,539 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:02,540 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2022-11-25 23:51:02,546 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:02,546 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2022-11-25 23:51:07,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:07,789 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:07,790 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 65 [2022-11-25 23:51:07,800 INFO L350 Elim1Store]: Elim1 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 386 treesize of output 374 [2022-11-25 23:51:07,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:07,823 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:07,823 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 284 [2022-11-25 23:51:07,837 INFO L350 Elim1Store]: Elim1 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 1726 treesize of output 1658 [2022-11-25 23:51:07,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 827 treesize of output 795 [2022-11-25 23:51:07,890 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:07,890 INFO L350 Elim1Store]: Elim1 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 1628 treesize of output 1570 [2022-11-25 23:51:07,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1558 treesize of output 1526 [2022-11-25 23:51:07,941 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:07,942 INFO L350 Elim1Store]: Elim1 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 1532 treesize of output 1474 [2022-11-25 23:51:15,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:15,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:15,534 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 23:51:15,541 INFO L350 Elim1Store]: Elim1 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 122 treesize of output 110 [2022-11-25 23:51:15,555 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:51:15,555 INFO L350 Elim1Store]: Elim1 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 112 treesize of output 110 [2022-11-25 23:51:15,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2022-11-25 23:51:26,869 WARN L233 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 148 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:51:26,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 299 treesize of output 293 [2022-11-25 23:51:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:51:27,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863192655] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:51:27,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [26008999] [2022-11-25 23:51:27,501 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-25 23:51:27,501 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:51:27,501 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:51:27,502 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:51:27,502 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:51:27,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,537 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:27,553 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:51:27,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,561 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:51:27,571 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:51:27,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,590 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:51:27,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,599 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:51:27,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,610 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:51:27,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:51:27,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:51:27,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:51:27,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:51:27,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:51:27,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:51:27,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:51:27,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,797 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:51:27,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,858 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:51:27,858 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:51:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:51:27,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:51:27,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:27,957 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-25 23:51:27,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-25 23:51:27,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:27,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:51:27,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:51:28,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-25 23:51:28,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,139 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:51:28,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-25 23:51:28,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-25 23:51:28,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:51:28,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,325 INFO L321 Elim1Store]: treesize reduction 62, result has 31.9 percent of original size [2022-11-25 23:51:28,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 493 treesize of output 460 [2022-11-25 23:51:28,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,377 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-25 23:51:28,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 490 treesize of output 452 [2022-11-25 23:51:28,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:28,445 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-25 23:51:28,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 597 treesize of output 600 [2022-11-25 23:51:28,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:28,956 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-25 23:51:28,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1412 treesize of output 1393 [2022-11-25 23:51:29,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:29,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:29,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:29,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:29,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:29,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:29,616 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-11-25 23:51:29,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1778 treesize of output 1025 [2022-11-25 23:51:29,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:29,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:29,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:29,788 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-11-25 23:51:29,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 1799 treesize of output 1457 [2022-11-25 23:51:29,878 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-11-25 23:51:29,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1702 treesize of output 1557 [2022-11-25 23:51:30,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:30,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:30,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:30,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:30,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:30,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:31,106 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-11-25 23:51:31,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6469 treesize of output 3590 [2022-11-25 23:51:31,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:31,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:31,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:31,335 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-11-25 23:51:31,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 6487 treesize of output 5085 [2022-11-25 23:51:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:31,673 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-25 23:51:31,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6468 treesize of output 6214 [2022-11-25 23:51:31,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:31,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:31,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:31,846 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-11-25 23:51:31,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 6420 treesize of output 5790 [2022-11-25 23:51:37,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:37,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:37,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:37,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:37,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:37,899 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-11-25 23:51:37,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 26281 treesize of output 14387 [2022-11-25 23:51:38,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:38,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:38,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:38,528 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-11-25 23:51:38,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 26022 treesize of output 20467 [2022-11-25 23:51:38,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:38,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:38,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:51:38,945 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-11-25 23:51:38,945 INFO L350 Elim1Store]: Elim1 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 11 case distinctions, treesize of input 25658 treesize of output 23358 [2022-11-25 23:51:48,478 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:48,484 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:48,490 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:48,522 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:51:48,522 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:51:48,551 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:51:48,551 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:48,568 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 23 [2022-11-25 23:51:48,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:51:48,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:51:48,628 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:51:48,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:51:48,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-25 23:51:48,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:48,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2022-11-25 23:51:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:48,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-25 23:51:48,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-25 23:51:48,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:51:48,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:51:48,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-25 23:51:48,725 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:48,730 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:48,736 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:49,547 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:51:49,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 146 treesize of output 166 [2022-11-25 23:51:49,619 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:51:49,619 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:51:49,760 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:51:49,761 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 251 treesize of output 238 [2022-11-25 23:51:49,797 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:51:49,798 INFO L350 Elim1Store]: Elim1 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 239 treesize of output 242 [2022-11-25 23:51:49,887 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:51:49,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:50,007 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:51:50,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 348 treesize of output 361 [2022-11-25 23:51:50,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:50,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:50,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 329 treesize of output 315 [2022-11-25 23:51:50,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:50,076 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:51:50,076 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 342 treesize of output 331 [2022-11-25 23:51:50,276 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:51:50,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:51:50,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:51:50,328 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:51:50,341 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:51:56,017 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32834#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (= |ULTIMATE.start_inspect_before_#t~mem29#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_inspect_before_#t~mem29#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (or (not (<= (+ |ULTIMATE.start_inspect_before_#t~mem29#1.offset| 4) (select |#length| |ULTIMATE.start_inspect_before_#t~mem29#1.base|))) (not (<= 0 |ULTIMATE.start_inspect_before_#t~mem29#1.offset|))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|)) (not (= |ULTIMATE.start_inspect_before_~shape#1.base| 0))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-25 23:51:56,017 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:51:56,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:51:56,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 14] total 41 [2022-11-25 23:51:56,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960394330] [2022-11-25 23:51:56,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:51:56,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-25 23:51:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:56,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-25 23:51:56,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=4017, Unknown=1, NotChecked=0, Total=4290 [2022-11-25 23:51:56,020 INFO L87 Difference]: Start difference. First operand 329 states and 365 transitions. Second operand has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:52:10,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:10,691 INFO L93 Difference]: Finished difference Result 713 states and 778 transitions. [2022-11-25 23:52:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-25 23:52:10,691 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 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 45 [2022-11-25 23:52:10,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:10,693 INFO L225 Difference]: With dead ends: 713 [2022-11-25 23:52:10,693 INFO L226 Difference]: Without dead ends: 713 [2022-11-25 23:52:10,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2288 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=1095, Invalid=8024, Unknown=1, NotChecked=0, Total=9120 [2022-11-25 23:52:10,696 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 3581 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 4600 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3581 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 4693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 4600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:10,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3581 Valid, 2891 Invalid, 4693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 4600 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-25 23:52:10,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-11-25 23:52:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 329. [2022-11-25 23:52:10,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4666666666666666) internal successors, (352), 326 states have internal predecessors, (352), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:52:10,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 364 transitions. [2022-11-25 23:52:10,704 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 364 transitions. Word has length 45 [2022-11-25 23:52:10,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:10,704 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 364 transitions. [2022-11-25 23:52:10,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:52:10,705 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 364 transitions. [2022-11-25 23:52:10,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 23:52:10,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:10,706 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:10,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:10,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:10,912 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:52:10,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:10,912 INFO L85 PathProgramCache]: Analyzing trace with hash 446931310, now seen corresponding path program 1 times [2022-11-25 23:52:10,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:10,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145688119] [2022-11-25 23:52:10,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:10,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:52:11,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:11,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145688119] [2022-11-25 23:52:11,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145688119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:11,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:11,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:52:11,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7859451] [2022-11-25 23:52:11,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:11,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:52:11,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:11,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:52:11,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:11,015 INFO L87 Difference]: Start difference. First operand 329 states and 364 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:52:11,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:11,213 INFO L93 Difference]: Finished difference Result 328 states and 361 transitions. [2022-11-25 23:52:11,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:11,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-25 23:52:11,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:11,215 INFO L225 Difference]: With dead ends: 328 [2022-11-25 23:52:11,216 INFO L226 Difference]: Without dead ends: 328 [2022-11-25 23:52:11,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:52:11,216 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 24 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:11,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 641 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:52:11,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-11-25 23:52:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-11-25 23:52:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 240 states have (on average 1.4583333333333333) internal successors, (350), 325 states have internal predecessors, (350), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:52:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 361 transitions. [2022-11-25 23:52:11,222 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 361 transitions. Word has length 46 [2022-11-25 23:52:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:11,223 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 361 transitions. [2022-11-25 23:52:11,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:52:11,223 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 361 transitions. [2022-11-25 23:52:11,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 23:52:11,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:11,224 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:11,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-25 23:52:11,224 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:52:11,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:11,225 INFO L85 PathProgramCache]: Analyzing trace with hash 258826840, now seen corresponding path program 1 times [2022-11-25 23:52:11,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:11,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20806985] [2022-11-25 23:52:11,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:11,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:52:13,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:13,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20806985] [2022-11-25 23:52:13,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20806985] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:13,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251924371] [2022-11-25 23:52:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:13,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:13,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:13,634 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:13,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 23:52:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:13,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 100 conjunts are in the unsatisfiable core [2022-11-25 23:52:13,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:13,898 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:52:13,907 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:52:13,914 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:52:13,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:13,929 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:52:13,958 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:52:13,958 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:52:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:13,974 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:52:14,051 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:52:14,058 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-25 23:52:14,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:14,104 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:52:14,104 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 54 [2022-11-25 23:52:14,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:14,111 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 48 [2022-11-25 23:52:14,260 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 23:52:14,261 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-25 23:52:14,380 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 23:52:14,381 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 54 [2022-11-25 23:52:14,393 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 30 [2022-11-25 23:52:14,431 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 23:52:14,432 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 54 [2022-11-25 23:52:14,456 INFO L321 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2022-11-25 23:52:14,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2022-11-25 23:52:14,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-11-25 23:52:14,579 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-25 23:52:14,580 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 47 [2022-11-25 23:52:14,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-11-25 23:52:14,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:14,707 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-25 23:52:14,707 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 64 [2022-11-25 23:52:14,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:14,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2022-11-25 23:52:16,272 INFO L321 Elim1Store]: treesize reduction 97, result has 10.2 percent of original size [2022-11-25 23:52:16,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 168 treesize of output 86 [2022-11-25 23:52:16,294 INFO L321 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-11-25 23:52:16,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-11-25 23:52:16,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:52:16,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:52:16,835 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:52:16,835 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2022-11-25 23:52:16,847 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:52:16,847 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 53 [2022-11-25 23:52:34,261 INFO L321 Elim1Store]: treesize reduction 109, result has 31.4 percent of original size [2022-11-25 23:52:34,262 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 240 treesize of output 253 [2022-11-25 23:52:34,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,405 INFO L321 Elim1Store]: treesize reduction 95, result has 40.3 percent of original size [2022-11-25 23:52:34,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 203 treesize of output 119 [2022-11-25 23:52:34,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,450 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2022-11-25 23:52:34,451 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 91 treesize of output 81 [2022-11-25 23:52:34,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,546 INFO L321 Elim1Store]: treesize reduction 20, result has 51.2 percent of original size [2022-11-25 23:52:34,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 151 treesize of output 149 [2022-11-25 23:52:34,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-11-25 23:52:34,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:34,633 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-25 23:52:34,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2022-11-25 23:52:34,747 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:52:34,747 INFO L350 Elim1Store]: Elim1 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 150 treesize of output 148 [2022-11-25 23:52:35,317 INFO L321 Elim1Store]: treesize reduction 114, result has 28.3 percent of original size [2022-11-25 23:52:35,317 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 192 treesize of output 163 [2022-11-25 23:52:35,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:35,436 INFO L321 Elim1Store]: treesize reduction 119, result has 25.2 percent of original size [2022-11-25 23:52:35,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 118 treesize of output 84 [2022-11-25 23:52:35,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:35,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:35,473 INFO L321 Elim1Store]: treesize reduction 72, result has 5.3 percent of original size [2022-11-25 23:52:35,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 200 [2022-11-25 23:52:35,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:35,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:35,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:35,514 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-11-25 23:52:35,515 INFO L350 Elim1Store]: Elim1 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 93 treesize of output 61 [2022-11-25 23:52:35,540 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:52:35,541 INFO L350 Elim1Store]: Elim1 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 54 treesize of output 56 [2022-11-25 23:52:35,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:52:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:52:42,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251924371] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:52:42,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1592431710] [2022-11-25 23:52:42,247 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-25 23:52:42,247 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:52:42,247 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:52:42,247 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:52:42,248 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:52:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,289 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:52:42,305 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:52:42,315 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:52:42,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,327 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:52:42,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,345 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:52:42,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,357 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:52:42,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:52:42,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,390 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:52:42,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:52:42,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:52:42,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:52:42,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:52:42,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:52:42,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:52:42,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,563 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:52:42,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,640 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:52:42,640 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:52:42,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:52:42,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:52:42,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:42,753 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-25 23:52:42,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-25 23:52:42,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:52:42,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:52:42,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-25 23:52:42,951 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:52:42,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-25 23:52:42,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:42,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-25 23:52:43,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:52:43,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:43,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:43,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:43,129 INFO L321 Elim1Store]: treesize reduction 77, result has 8.3 percent of original size [2022-11-25 23:52:43,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 483 treesize of output 486 [2022-11-25 23:52:43,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:43,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:43,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:43,188 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-25 23:52:43,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 495 treesize of output 457 [2022-11-25 23:52:43,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:43,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,259 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-25 23:52:43,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 639 treesize of output 606 [2022-11-25 23:52:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:43,691 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-25 23:52:43,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-25 23:52:44,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:44,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:44,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:44,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:44,382 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-11-25 23:52:44,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1572 treesize of output 983 [2022-11-25 23:52:44,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:44,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:44,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:44,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:44,554 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-11-25 23:52:44,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 1562 treesize of output 1421 [2022-11-25 23:52:44,686 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-11-25 23:52:44,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1520 treesize of output 1381 [2022-11-25 23:52:45,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:45,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:45,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:45,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:45,944 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-11-25 23:52:45,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5753 treesize of output 3464 [2022-11-25 23:52:46,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:46,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:46,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:46,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:46,205 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-11-25 23:52:46,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 5771 treesize of output 5058 [2022-11-25 23:52:46,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:46,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:46,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:46,389 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-11-25 23:52:46,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 5740 treesize of output 5146 [2022-11-25 23:52:46,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:46,747 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-25 23:52:46,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5640 treesize of output 5386 [2022-11-25 23:52:52,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:52,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:52,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:52,619 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-11-25 23:52:52,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 23399 treesize of output 13925 [2022-11-25 23:52:52,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:52,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:52,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:53,119 INFO L321 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2022-11-25 23:52:53,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 23193 treesize of output 20371 [2022-11-25 23:52:53,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:52:53,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:52:53,612 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-11-25 23:52:53,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 22968 treesize of output 20758 [2022-11-25 23:53:03,303 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:03,310 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:03,316 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:03,352 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:53:03,353 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:53:03,388 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:03,388 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:03,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:53:03,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:53:03,421 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 23 [2022-11-25 23:53:03,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:53:03,484 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-25 23:53:03,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-25 23:53:03,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:03,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:53:03,555 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:53:03,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:53:03,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:03,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2022-11-25 23:53:03,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:53:03,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-25 23:53:03,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:53:03,640 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:03,648 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:03,656 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:04,647 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:53:04,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 146 treesize of output 166 [2022-11-25 23:53:04,799 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:04,800 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:04,857 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:04,857 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:04,910 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:04,910 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:05,371 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:53:05,432 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:53:05,432 INFO L350 Elim1Store]: Elim1 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 1035 treesize of output 1002 [2022-11-25 23:53:05,480 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:53:05,481 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 991 treesize of output 914 [2022-11-25 23:53:06,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:06,366 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:53:06,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:06,503 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:53:06,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 2653 treesize of output 2582 [2022-11-25 23:53:06,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:06,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:06,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2550 treesize of output 2352 [2022-11-25 23:53:06,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:06,694 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:53:06,695 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 2563 treesize of output 2504 [2022-11-25 23:53:10,712 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:53:10,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:53:10,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:10,782 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:53:10,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:53:11,046 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:11,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-25 23:53:11,202 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:53:11,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:53:11,295 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:53:11,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:53:11,512 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:53:11,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:53:11,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:11,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2022-11-25 23:53:11,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:53:11,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:53:11,785 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:53:11,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:53:11,909 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:53:11,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:53:12,201 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 89 for LOIs [2022-11-25 23:53:12,288 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:53:21,781 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34947#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (or (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0))))) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-25 23:53:21,781 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:53:21,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:53:21,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 16] total 40 [2022-11-25 23:53:21,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485836845] [2022-11-25 23:53:21,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:53:21,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-25 23:53:21,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:21,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-25 23:53:21,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=3994, Unknown=9, NotChecked=0, Total=4290 [2022-11-25 23:53:21,784 INFO L87 Difference]: Start difference. First operand 328 states and 361 transitions. Second operand has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:39,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:39,002 INFO L93 Difference]: Finished difference Result 627 states and 675 transitions. [2022-11-25 23:53:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-25 23:53:39,003 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-11-25 23:53:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:39,006 INFO L225 Difference]: With dead ends: 627 [2022-11-25 23:53:39,006 INFO L226 Difference]: Without dead ends: 627 [2022-11-25 23:53:39,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 97 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2229 ImplicationChecksByTransitivity, 42.0s TimeCoverageRelationStatistics Valid=869, Invalid=7494, Unknown=9, NotChecked=0, Total=8372 [2022-11-25 23:53:39,007 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 3200 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 3246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:39,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 3590 Invalid, 3246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-11-25 23:53:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-11-25 23:53:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 329. [2022-11-25 23:53:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 241 states have (on average 1.4564315352697095) internal successors, (351), 326 states have internal predecessors, (351), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:53:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 362 transitions. [2022-11-25 23:53:39,015 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 362 transitions. Word has length 48 [2022-11-25 23:53:39,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:39,015 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 362 transitions. [2022-11-25 23:53:39,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 362 transitions. [2022-11-25 23:53:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-25 23:53:39,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:39,016 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:53:39,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:39,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:39,217 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:53:39,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash 168125297, now seen corresponding path program 1 times [2022-11-25 23:53:39,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:39,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362748892] [2022-11-25 23:53:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:39,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:39,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:39,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:39,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362748892] [2022-11-25 23:53:39,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362748892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:39,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:39,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:53:39,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802405251] [2022-11-25 23:53:39,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:39,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:53:39,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:39,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:53:39,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:53:39,290 INFO L87 Difference]: Start difference. First operand 329 states and 362 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:39,524 INFO L93 Difference]: Finished difference Result 402 states and 440 transitions. [2022-11-25 23:53:39,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:53:39,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-11-25 23:53:39,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:39,526 INFO L225 Difference]: With dead ends: 402 [2022-11-25 23:53:39,526 INFO L226 Difference]: Without dead ends: 402 [2022-11-25 23:53:39,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:53:39,527 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 399 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:39,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 300 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:53:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-25 23:53:39,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 330. [2022-11-25 23:53:39,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 242 states have (on average 1.4545454545454546) internal successors, (352), 327 states have internal predecessors, (352), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:53:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 363 transitions. [2022-11-25 23:53:39,534 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 363 transitions. Word has length 49 [2022-11-25 23:53:39,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:39,534 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 363 transitions. [2022-11-25 23:53:39,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:39,534 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 363 transitions. [2022-11-25 23:53:39,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 23:53:39,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:39,535 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:53:39,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-25 23:53:39,535 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:53:39,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -556748152, now seen corresponding path program 1 times [2022-11-25 23:53:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:39,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054185091] [2022-11-25 23:53:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:53:41,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:41,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054185091] [2022-11-25 23:53:41,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054185091] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:53:41,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818401219] [2022-11-25 23:53:41,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:41,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:41,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:41,197 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:41,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 23:53:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:41,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-25 23:53:41,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:41,447 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:41,486 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:41,486 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:41,551 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:53:41,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:41,616 INFO L350 Elim1Store]: Elim1 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 31 treesize of output 26 [2022-11-25 23:53:41,737 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 23:53:41,738 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-25 23:53:41,826 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 30 [2022-11-25 23:53:41,861 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 30 [2022-11-25 23:53:41,931 INFO L321 Elim1Store]: treesize reduction 66, result has 35.3 percent of original size [2022-11-25 23:53:41,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 53 [2022-11-25 23:53:42,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2022-11-25 23:53:42,099 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:42,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2022-11-25 23:53:43,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-25 23:53:44,110 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:53:44,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 37 [2022-11-25 23:53:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:53:44,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:53:44,787 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:53:44,787 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 23:53:45,331 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:53:45,331 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 40 [2022-11-25 23:53:45,341 INFO L350 Elim1Store]: Elim1 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 186 treesize of output 174 [2022-11-25 23:53:45,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 166 [2022-11-25 23:53:45,363 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:53:45,363 INFO L350 Elim1Store]: Elim1 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 172 treesize of output 170 [2022-11-25 23:53:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:53:46,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818401219] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:53:46,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [743752311] [2022-11-25 23:53:46,155 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 23:53:46,155 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:53:46,155 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:53:46,155 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:53:46,155 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:53:46,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,187 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:46,204 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:53:46,214 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:53:46,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,225 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:53:46,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,247 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:53:46,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,261 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:53:46,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,274 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:53:46,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:53:46,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:53:46,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:53:46,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:53:46,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:53:46,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:53:46,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:53:46,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,487 INFO L350 Elim1Store]: Elim1 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 53 treesize of output 56 [2022-11-25 23:53:46,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,563 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-25 23:53:46,563 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 163 treesize of output 131 [2022-11-25 23:53:46,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2022-11-25 23:53:46,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 86 [2022-11-25 23:53:46,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:46,681 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-25 23:53:46,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-25 23:53:46,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:53:46,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-25 23:53:46,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:53:46,914 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:53:46,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-25 23:53:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-25 23:53:46,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:53:47,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:47,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:47,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:47,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:47,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:47,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:47,088 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-25 23:53:47,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 490 treesize of output 452 [2022-11-25 23:53:47,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:47,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:47,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:47,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:47,168 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-25 23:53:47,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 634 treesize of output 601 [2022-11-25 23:53:47,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:47,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:47,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:47,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:47,257 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-25 23:53:47,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 600 treesize of output 603 [2022-11-25 23:53:47,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:47,680 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-25 23:53:47,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1244 treesize of output 1221 [2022-11-25 23:53:48,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:48,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:48,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:48,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:48,461 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-11-25 23:53:48,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3120 treesize of output 1919 [2022-11-25 23:53:48,578 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-11-25 23:53:48,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 3068 treesize of output 2757 [2022-11-25 23:53:48,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:48,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:48,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:48,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:48,760 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-11-25 23:53:48,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3082 treesize of output 2713 [2022-11-25 23:53:49,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:49,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:49,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:49,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:49,738 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-11-25 23:53:49,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 3845 treesize of output 2358 [2022-11-25 23:53:49,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:49,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:49,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:49,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:49,977 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-11-25 23:53:49,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 3863 treesize of output 3400 [2022-11-25 23:53:50,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:50,350 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-25 23:53:50,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3844 treesize of output 3650 [2022-11-25 23:53:50,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:50,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:50,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:50,531 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-11-25 23:53:50,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 3796 treesize of output 3438 [2022-11-25 23:53:52,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:52,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:52,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:52,626 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-11-25 23:53:52,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 7664 treesize of output 4614 [2022-11-25 23:53:52,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:52,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:52,814 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-11-25 23:53:52,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 7639 treesize of output 6965 [2022-11-25 23:53:52,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:52,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:52,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:53:53,121 INFO L321 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2022-11-25 23:53:53,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 7640 treesize of output 6802 [2022-11-25 23:53:55,787 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:55,792 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:55,797 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:55,829 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:53:55,830 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:53:55,861 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:55,861 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:55,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:53:55,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:53:55,890 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:53:55,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:53:55,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:55,912 INFO L350 Elim1Store]: Elim1 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 34 treesize of output 21 [2022-11-25 23:53:55,955 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-25 23:53:55,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 24 treesize of output 31 [2022-11-25 23:53:55,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:55,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:53:56,021 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:53:56,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:53:56,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:53:56,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-25 23:53:56,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:53:56,075 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:56,080 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:56,086 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:56,910 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:53:56,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:53:57,067 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:57,067 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:57,125 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:53:57,125 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:53:57,276 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:53:57,325 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:53:57,325 INFO L350 Elim1Store]: Elim1 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 418 treesize of output 421 [2022-11-25 23:53:57,364 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:53:57,364 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 410 treesize of output 381 [2022-11-25 23:53:57,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:57,624 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:53:57,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:57,743 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:53:57,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 857 treesize of output 850 [2022-11-25 23:53:57,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:57,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:57,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 818 treesize of output 768 [2022-11-25 23:53:57,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:57,860 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:53:57,860 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 831 treesize of output 814 [2022-11-25 23:53:59,397 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:53:59,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:53:59,463 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:53:59,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:53:59,500 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:53:59,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:53:59,949 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:53:59,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:53:59,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:54:00,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:54:00,085 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:54:00,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:54:00,147 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:54:00,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:54:00,363 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:54:05,442 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37061#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) |ULTIMATE.start_inspect_before_#t~mem24#1.offset|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_#t~mem24#1.base|) 1)) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_inspect_before_#t~mem24#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-25 23:54:05,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:54:05,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:54:05,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 14] total 38 [2022-11-25 23:54:05,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936634685] [2022-11-25 23:54:05,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:54:05,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-25 23:54:05,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:05,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-25 23:54:05,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=2947, Unknown=1, NotChecked=0, Total=3192 [2022-11-25 23:54:05,445 INFO L87 Difference]: Start difference. First operand 330 states and 363 transitions. Second operand has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 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) [2022-11-25 23:54:15,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:15,988 INFO L93 Difference]: Finished difference Result 562 states and 610 transitions. [2022-11-25 23:54:15,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:54:15,989 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 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) Word has length 51 [2022-11-25 23:54:15,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:15,991 INFO L225 Difference]: With dead ends: 562 [2022-11-25 23:54:15,991 INFO L226 Difference]: Without dead ends: 562 [2022-11-25 23:54:15,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=756, Invalid=5249, Unknown=1, NotChecked=0, Total=6006 [2022-11-25 23:54:15,992 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 3002 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 93 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3004 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:15,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3004 Valid, 2648 Invalid, 2821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2727 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 23:54:15,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-11-25 23:54:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 331. [2022-11-25 23:54:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 243 states have (on average 1.4567901234567902) internal successors, (354), 328 states have internal predecessors, (354), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:54:15,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 365 transitions. [2022-11-25 23:54:15,998 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 365 transitions. Word has length 51 [2022-11-25 23:54:15,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:15,999 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 365 transitions. [2022-11-25 23:54:15,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 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) [2022-11-25 23:54:15,999 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 365 transitions. [2022-11-25 23:54:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 23:54:16,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:16,000 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:54:16,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 23:54:16,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-11-25 23:54:16,207 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:54:16,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash -556748151, now seen corresponding path program 1 times [2022-11-25 23:54:16,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:16,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125078133] [2022-11-25 23:54:16,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:16,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:54:18,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:18,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125078133] [2022-11-25 23:54:18,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125078133] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:54:18,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368998503] [2022-11-25 23:54:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:18,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:18,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:54:18,392 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:54:18,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 23:54:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:18,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 83 conjunts are in the unsatisfiable core [2022-11-25 23:54:18,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:54:18,653 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:54:18,733 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:54:18,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:54:18,770 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:54:18,771 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:54:18,854 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:54:18,861 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:54:18,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:18,953 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:54:18,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:18,962 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 31 [2022-11-25 23:54:19,121 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 23:54:19,121 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-25 23:54:19,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 23:54:19,246 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 37 [2022-11-25 23:54:19,272 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-25 23:54:19,298 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 37 [2022-11-25 23:54:19,309 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-25 23:54:19,343 INFO L321 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2022-11-25 23:54:19,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2022-11-25 23:54:19,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 23:54:19,452 INFO L350 Elim1Store]: Elim1 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 32 treesize of output 30 [2022-11-25 23:54:19,467 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-25 23:54:19,485 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 30 [2022-11-25 23:54:19,491 INFO L350 Elim1Store]: Elim1 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 26 [2022-11-25 23:54:20,731 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:20,732 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 45 [2022-11-25 23:54:20,746 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-25 23:54:20,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-11-25 23:54:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:54:20,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:54:21,668 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:21,669 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-25 23:54:21,683 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:21,684 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2022-11-25 23:54:21,691 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:21,692 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2022-11-25 23:54:25,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:25,142 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:25,142 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 32 [2022-11-25 23:54:25,148 INFO L350 Elim1Store]: Elim1 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 60 treesize of output 52 [2022-11-25 23:54:25,160 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:25,161 INFO L350 Elim1Store]: Elim1 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 54 treesize of output 56 [2022-11-25 23:54:25,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:54:25,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:25,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:25,300 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 65 [2022-11-25 23:54:25,312 INFO L350 Elim1Store]: Elim1 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 386 treesize of output 374 [2022-11-25 23:54:25,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:25,353 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:25,354 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 284 [2022-11-25 23:54:25,370 INFO L350 Elim1Store]: Elim1 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 862 treesize of output 826 [2022-11-25 23:54:25,402 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:25,402 INFO L350 Elim1Store]: Elim1 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 828 treesize of output 802 [2022-11-25 23:54:25,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 403 treesize of output 387 [2022-11-25 23:54:25,450 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:54:25,451 INFO L350 Elim1Store]: Elim1 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 780 treesize of output 754 [2022-11-25 23:54:25,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 742 treesize of output 726 [2022-11-25 23:54:47,756 WARN L233 SmtUtils]: Spent 19.63s on a formula simplification. DAG size of input: 137 DAG size of output: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:54:47,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1025 treesize of output 1007 [2022-11-25 23:54:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:54:52,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368998503] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:54:52,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1584813498] [2022-11-25 23:54:52,132 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-25 23:54:52,132 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:54:52,133 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:54:52,133 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:54:52,133 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:54:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,160 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:54:52,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,178 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:54:52,188 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:54:52,195 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:54:52,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,213 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:54:52,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,225 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:54:52,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,236 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:54:52,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:54:52,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:54:52,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:54:52,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:54:52,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:54:52,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:54:52,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:54:52,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,418 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:54:52,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,495 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-25 23:54:52,495 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 163 treesize of output 131 [2022-11-25 23:54:52,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2022-11-25 23:54:52,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 86 [2022-11-25 23:54:52,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:52,616 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-25 23:54:52,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-25 23:54:52,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-25 23:54:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:54:52,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-25 23:54:52,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,838 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:54:52,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-25 23:54:52,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-25 23:54:52,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:52,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:54:53,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,039 INFO L321 Elim1Store]: treesize reduction 79, result has 10.2 percent of original size [2022-11-25 23:54:53,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 487 treesize of output 490 [2022-11-25 23:54:53,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,129 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-25 23:54:53,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 595 treesize of output 562 [2022-11-25 23:54:53,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:53,183 INFO L321 Elim1Store]: treesize reduction 73, result has 17.0 percent of original size [2022-11-25 23:54:53,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 592 treesize of output 488 [2022-11-25 23:54:53,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:53,590 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-25 23:54:53,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1412 treesize of output 1393 [2022-11-25 23:54:54,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:54,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:54,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:54,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:54,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:54,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:54,333 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-11-25 23:54:54,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2421 treesize of output 1344 [2022-11-25 23:54:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:54,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:54,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:54,537 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-11-25 23:54:54,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 2422 treesize of output 2005 [2022-11-25 23:54:54,615 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-25 23:54:54,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2305 treesize of output 2154 [2022-11-25 23:54:55,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:55,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:55,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:55,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:55,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:55,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:55,939 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-11-25 23:54:55,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 6065 treesize of output 3156 [2022-11-25 23:54:56,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:56,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:56,036 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:56,163 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-11-25 23:54:56,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6083 treesize of output 4878 [2022-11-25 23:54:56,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:56,564 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-25 23:54:56,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6064 treesize of output 5808 [2022-11-25 23:54:56,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:56,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:56,763 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-11-25 23:54:56,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 5962 treesize of output 5650 [2022-11-25 23:55:02,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:02,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:02,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:55:02,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:55:02,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:55:02,967 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-11-25 23:55:02,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 18683 treesize of output 9577 [2022-11-25 23:55:03,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:03,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:55:03,436 INFO L321 Elim1Store]: treesize reduction 416, result has 13.2 percent of original size [2022-11-25 23:55:03,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 18464 treesize of output 14848 [2022-11-25 23:55:03,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:03,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:55:03,777 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-11-25 23:55:03,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 18140 treesize of output 17194 [2022-11-25 23:55:13,041 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:13,047 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:13,052 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:13,087 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:55:13,087 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:13,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 16 [2022-11-25 23:55:13,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:55:13,115 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:55:13,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:55:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:13,138 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:13,190 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:55:13,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:55:13,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:13,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-25 23:55:13,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-25 23:55:13,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-25 23:55:13,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:55:13,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:55:13,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:55:13,275 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:13,281 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:13,286 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:14,110 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:55:14,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:55:14,228 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:55:14,229 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:14,259 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:55:14,260 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:14,412 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:55:14,413 INFO L350 Elim1Store]: Elim1 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 351 treesize of output 360 [2022-11-25 23:55:14,448 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:55:14,449 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 349 treesize of output 320 [2022-11-25 23:55:14,638 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:55:14,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:14,825 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:55:14,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 745 treesize of output 744 [2022-11-25 23:55:14,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:14,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:14,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 712 treesize of output 662 [2022-11-25 23:55:14,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:14,929 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:55:14,929 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 725 treesize of output 714 [2022-11-25 23:55:15,743 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:55:15,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:55:15,832 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:55:15,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:55:15,920 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:55:15,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:55:15,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-25 23:55:16,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:16,000 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:55:16,032 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:55:21,450 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38356#(and (<= 0 |#NULL.base|) (or (not (<= (+ |ULTIMATE.start_inspect_before_#t~mem24#1.offset| 4) (select |#length| |ULTIMATE.start_inspect_before_#t~mem24#1.base|))) (not (<= 0 |ULTIMATE.start_inspect_before_#t~mem24#1.offset|))) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) |ULTIMATE.start_inspect_before_#t~mem24#1.offset|) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_inspect_before_#t~mem24#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-25 23:55:21,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:55:21,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:55:21,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 13] total 38 [2022-11-25 23:55:21,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783254735] [2022-11-25 23:55:21,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:55:21,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-25 23:55:21,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:21,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-25 23:55:21,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2957, Unknown=3, NotChecked=0, Total=3192 [2022-11-25 23:55:21,452 INFO L87 Difference]: Start difference. First operand 331 states and 365 transitions. Second operand has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:55:36,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:36,369 INFO L93 Difference]: Finished difference Result 699 states and 756 transitions. [2022-11-25 23:55:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 23:55:36,370 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 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 51 [2022-11-25 23:55:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:36,372 INFO L225 Difference]: With dead ends: 699 [2022-11-25 23:55:36,372 INFO L226 Difference]: Without dead ends: 699 [2022-11-25 23:55:36,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 40.8s TimeCoverageRelationStatistics Valid=896, Invalid=5743, Unknown=3, NotChecked=0, Total=6642 [2022-11-25 23:55:36,372 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 4047 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 4000 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 4104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 4000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:36,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4049 Valid, 2544 Invalid, 4104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 4000 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-25 23:55:36,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-11-25 23:55:36,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 331. [2022-11-25 23:55:36,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 243 states have (on average 1.4526748971193415) internal successors, (353), 328 states have internal predecessors, (353), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:55:36,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 364 transitions. [2022-11-25 23:55:36,379 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 364 transitions. Word has length 51 [2022-11-25 23:55:36,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:36,380 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 364 transitions. [2022-11-25 23:55:36,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:55:36,380 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 364 transitions. [2022-11-25 23:55:36,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 23:55:36,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:36,381 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:55:36,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 23:55:36,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:55:36,588 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:55:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 689402232, now seen corresponding path program 1 times [2022-11-25 23:55:36,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:36,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390309289] [2022-11-25 23:55:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:36,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:36,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:36,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:36,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390309289] [2022-11-25 23:55:36,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390309289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:36,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:36,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:55:36,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542986735] [2022-11-25 23:55:36,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:36,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:55:36,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:36,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:55:36,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:55:36,963 INFO L87 Difference]: Start difference. First operand 331 states and 364 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:55:38,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:38,354 INFO L93 Difference]: Finished difference Result 474 states and 517 transitions. [2022-11-25 23:55:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 23:55:38,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-25 23:55:38,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:38,356 INFO L225 Difference]: With dead ends: 474 [2022-11-25 23:55:38,356 INFO L226 Difference]: Without dead ends: 474 [2022-11-25 23:55:38,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=470, Unknown=0, NotChecked=0, Total=650 [2022-11-25 23:55:38,356 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 1042 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:38,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 799 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:55:38,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-25 23:55:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 339. [2022-11-25 23:55:38,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 252 states have (on average 1.4404761904761905) internal successors, (363), 336 states have internal predecessors, (363), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:55:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 374 transitions. [2022-11-25 23:55:38,365 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 374 transitions. Word has length 52 [2022-11-25 23:55:38,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:38,365 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 374 transitions. [2022-11-25 23:55:38,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:55:38,365 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 374 transitions. [2022-11-25 23:55:38,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 23:55:38,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:38,366 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:55:38,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-25 23:55:38,366 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:55:38,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:38,367 INFO L85 PathProgramCache]: Analyzing trace with hash 689402233, now seen corresponding path program 1 times [2022-11-25 23:55:38,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:38,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424642839] [2022-11-25 23:55:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:38,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:38,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:38,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:38,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424642839] [2022-11-25 23:55:38,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424642839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:38,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:38,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 23:55:38,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513775163] [2022-11-25 23:55:38,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:38,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:55:38,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:38,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:55:38,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:55:38,703 INFO L87 Difference]: Start difference. First operand 339 states and 374 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:55:39,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:39,622 INFO L93 Difference]: Finished difference Result 379 states and 408 transitions. [2022-11-25 23:55:39,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 23:55:39,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-25 23:55:39,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:39,623 INFO L225 Difference]: With dead ends: 379 [2022-11-25 23:55:39,623 INFO L226 Difference]: Without dead ends: 379 [2022-11-25 23:55:39,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:55:39,624 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 658 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:39,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 881 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:55:39,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-25 23:55:39,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 340. [2022-11-25 23:55:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 253 states have (on average 1.434782608695652) internal successors, (363), 337 states have internal predecessors, (363), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:55:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 374 transitions. [2022-11-25 23:55:39,630 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 374 transitions. Word has length 52 [2022-11-25 23:55:39,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:39,630 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 374 transitions. [2022-11-25 23:55:39,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:55:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 374 transitions. [2022-11-25 23:55:39,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 23:55:39,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:39,631 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:55:39,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-25 23:55:39,632 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:55:39,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:39,632 INFO L85 PathProgramCache]: Analyzing trace with hash 689404850, now seen corresponding path program 1 times [2022-11-25 23:55:39,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:39,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360111288] [2022-11-25 23:55:39,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:39,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:39,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:39,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:39,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360111288] [2022-11-25 23:55:39,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360111288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:39,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:39,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:55:39,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169746990] [2022-11-25 23:55:39,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:39,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:55:39,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:39,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:55:39,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:55:39,836 INFO L87 Difference]: Start difference. First operand 340 states and 374 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:55:40,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:40,388 INFO L93 Difference]: Finished difference Result 386 states and 415 transitions. [2022-11-25 23:55:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:55:40,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-25 23:55:40,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:40,390 INFO L225 Difference]: With dead ends: 386 [2022-11-25 23:55:40,390 INFO L226 Difference]: Without dead ends: 386 [2022-11-25 23:55:40,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:55:40,391 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 639 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:40,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 694 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:55:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-25 23:55:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 342. [2022-11-25 23:55:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 255 states have (on average 1.427450980392157) internal successors, (364), 339 states have internal predecessors, (364), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:55:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 375 transitions. [2022-11-25 23:55:40,396 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 375 transitions. Word has length 52 [2022-11-25 23:55:40,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:40,397 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 375 transitions. [2022-11-25 23:55:40,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:55:40,397 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 375 transitions. [2022-11-25 23:55:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 23:55:40,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:40,398 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:55:40,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-25 23:55:40,398 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-25 23:55:40,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:40,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1079650774, now seen corresponding path program 1 times [2022-11-25 23:55:40,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:40,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657563428] [2022-11-25 23:55:40,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:40,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:55:43,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:43,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657563428] [2022-11-25 23:55:43,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657563428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:55:43,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62403190] [2022-11-25 23:55:43,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:43,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:55:43,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:55:43,240 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:55:43,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8181904-6cfe-45ae-b8a0-92615dccf27c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 23:55:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:43,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 109 conjunts are in the unsatisfiable core [2022-11-25 23:55:43,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:55:43,518 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:43,531 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:43,537 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:43,550 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:43,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:43,561 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:43,603 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:55:43,603 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:43,720 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:55:43,726 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 22 [2022-11-25 23:55:43,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:43,792 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:55:43,793 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 54 [2022-11-25 23:55:43,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:43,808 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 48 [2022-11-25 23:55:44,034 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-25 23:55:44,034 INFO L350 Elim1Store]: Elim1 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 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-25 23:55:44,172 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 23:55:44,172 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 62 [2022-11-25 23:55:44,178 INFO L350 Elim1Store]: Elim1 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 44 treesize of output 45 [2022-11-25 23:55:44,245 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 23:55:44,246 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 62 [2022-11-25 23:55:44,278 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-25 23:55:44,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-25 23:55:44,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-25 23:55:44,421 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-25 23:55:44,421 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 55 [2022-11-25 23:55:44,430 INFO L350 Elim1Store]: Elim1 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 44 treesize of output 45 [2022-11-25 23:55:44,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:44,460 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:55:44,460 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 53 [2022-11-25 23:55:44,469 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 66 [2022-11-25 23:55:46,653 INFO L321 Elim1Store]: treesize reduction 149, result has 28.4 percent of original size [2022-11-25 23:55:46,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 20 case distinctions, treesize of input 170 treesize of output 143 [2022-11-25 23:55:46,700 INFO L321 Elim1Store]: treesize reduction 82, result has 7.9 percent of original size [2022-11-25 23:55:46,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 8 case distinctions, treesize of input 100 treesize of output 67 [2022-11-25 23:55:46,711 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:55:46,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:55:47,906 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:55:47,906 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 110 [2022-11-25 23:55:47,919 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:55:47,920 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 90 [2022-11-25 23:56:10,035 INFO L321 Elim1Store]: treesize reduction 125, result has 31.7 percent of original size [2022-11-25 23:56:10,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 220 treesize of output 195 [2022-11-25 23:56:10,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:10,228 INFO L321 Elim1Store]: treesize reduction 109, result has 40.4 percent of original size [2022-11-25 23:56:10,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 179 treesize of output 129 [2022-11-25 23:56:10,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:10,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:10,392 INFO L321 Elim1Store]: treesize reduction 35, result has 55.1 percent of original size [2022-11-25 23:56:10,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 157 treesize of output 169 [2022-11-25 23:56:10,439 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:56:10,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 129 treesize of output 131 [2022-11-25 23:56:10,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 58 [2022-11-25 23:56:10,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:10,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:10,660 INFO L321 Elim1Store]: treesize reduction 49, result has 53.8 percent of original size [2022-11-25 23:56:10,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 343 treesize of output 277 [2022-11-25 23:56:10,703 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:56:10,703 INFO L350 Elim1Store]: Elim1 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 118 treesize of output 120 [2022-11-25 23:56:10,789 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:56:10,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 407 treesize of output 379 [2022-11-25 23:56:15,297 INFO L321 Elim1Store]: treesize reduction 132, result has 27.9 percent of original size [2022-11-25 23:56:15,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 220 treesize of output 147 [2022-11-25 23:56:15,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:15,496 INFO L321 Elim1Store]: treesize reduction 137, result has 25.1 percent of original size [2022-11-25 23:56:15,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 138 treesize of output 101 [2022-11-25 23:56:15,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:15,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:15,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:15,624 INFO L321 Elim1Store]: treesize reduction 61, result has 42.5 percent of original size [2022-11-25 23:56:15,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 462 treesize of output 412 [2022-11-25 23:56:15,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:15,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:15,708 INFO L321 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2022-11-25 23:56:15,708 INFO L350 Elim1Store]: Elim1 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 310 treesize of output 219 [2022-11-25 23:56:15,742 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:56:15,743 INFO L350 Elim1Store]: Elim1 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 176 treesize of output 178 [2022-11-25 23:56:15,818 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:56:15,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 299 treesize of output 311 [2022-11-25 23:56:15,873 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:56:15,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 222 treesize of output 190 [2022-11-25 23:56:15,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2022-11-25 23:56:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:56:21,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62403190] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:56:21,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1552160862] [2022-11-25 23:56:21,864 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-25 23:56:21,865 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:56:21,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:56:21,865 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:56:21,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:56:21,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,907 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:21,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,927 INFO L350 Elim1Store]: Elim1 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 30 treesize of output 21 [2022-11-25 23:56:21,937 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:56:21,946 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:56:21,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,969 INFO L350 Elim1Store]: Elim1 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 28 treesize of output 30 [2022-11-25 23:56:21,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:21,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-25 23:56:22,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,007 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:56:22,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,020 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:56:22,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:56:22,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:56:22,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-25 23:56:22,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:56:22,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 28 treesize of output 30 [2022-11-25 23:56:22,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-25 23:56:22,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,193 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 47 [2022-11-25 23:56:22,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,278 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-25 23:56:22,278 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-25 23:56:22,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2022-11-25 23:56:22,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-25 23:56:22,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,417 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-25 23:56:22,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-25 23:56:22,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-11-25 23:56:22,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-11-25 23:56:22,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-25 23:56:22,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,674 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-25 23:56:22,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-25 23:56:22,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-25 23:56:22,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-25 23:56:22,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,870 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-25 23:56:22,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-11-25 23:56:22,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,936 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-25 23:56:22,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 638 treesize of output 641 [2022-11-25 23:56:22,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:22,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:22,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:23,030 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-11-25 23:56:23,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 752 treesize of output 719 [2022-11-25 23:56:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:23,465 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-25 23:56:23,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 case distinctions, treesize of input 1450 treesize of output 1415 [2022-11-25 23:56:24,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:24,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:24,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:24,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:24,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:24,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:24,247 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-11-25 23:56:24,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3298 treesize of output 1821 [2022-11-25 23:56:24,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:24,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:24,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:24,489 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-11-25 23:56:24,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 3279 treesize of output 2682 [2022-11-25 23:56:24,587 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-25 23:56:24,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 3142 treesize of output 2903 [2022-11-25 23:56:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:25,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:25,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:25,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:25,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:25,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:26,140 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-11-25 23:56:26,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 7525 treesize of output 4044 [2022-11-25 23:56:26,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:26,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:26,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:26,369 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-11-25 23:56:26,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 7512 treesize of output 6984 [2022-11-25 23:56:26,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:26,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:26,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:26,663 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-11-25 23:56:26,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 7426 treesize of output 6029 [2022-11-25 23:56:26,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:27,116 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-25 23:56:27,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 7364 treesize of output 6954 [2022-11-25 23:56:33,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:33,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:33,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:33,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:33,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:34,116 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-11-25 23:56:34,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 28703 treesize of output 15295 [2022-11-25 23:56:34,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:34,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:34,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:34,676 INFO L321 Elim1Store]: treesize reduction 400, result has 12.3 percent of original size [2022-11-25 23:56:34,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 28384 treesize of output 23092 [2022-11-25 23:56:35,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:35,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:35,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:56:35,178 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-11-25 23:56:35,179 INFO L350 Elim1Store]: Elim1 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 10 case distinctions, treesize of input 28140 treesize of output 26378 [2022-11-25 23:56:41,933 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:41,941 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:41,948 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:41,989 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:56:41,990 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 23:56:42,037 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:56:42,037 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:42,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:56:42,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:56:42,068 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-11-25 23:56:42,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:42,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-11-25 23:56:42,149 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-25 23:56:42,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-25 23:56:42,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:56:42,238 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:56:42,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:56:42,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:42,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:56:42,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 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 [2022-11-25 23:56:42,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-25 23:56:42,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-25 23:56:42,308 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:42,314 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:42,321 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:43,164 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-25 23:56:43,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-25 23:56:43,307 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:56:43,308 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:43,354 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-25 23:56:43,355 INFO L350 Elim1Store]: Elim1 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 [2022-11-25 23:56:43,507 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:56:43,508 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 355 treesize of output 326 [2022-11-25 23:56:43,569 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 23:56:43,570 INFO L350 Elim1Store]: Elim1 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 335 treesize of output 344 [2022-11-25 23:56:43,709 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-25 23:56:43,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:43,906 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-25 23:56:43,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 493 treesize of output 500 [2022-11-25 23:56:43,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:43,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:43,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 468 treesize of output 442 [2022-11-25 23:56:43,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:44,018 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-25 23:56:44,019 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 481 treesize of output 476 [2022-11-25 23:56:44,456 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:56:44,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-25 23:56:44,500 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:56:44,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:56:44,566 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:56:44,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-25 23:56:44,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:56:44,606 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-11-25 23:56:44,637 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 10 for LOIs [2022-11-25 23:56:44,640 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:56:51,653 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42165#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-25 23:56:51,653 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:56:51,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:56:51,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 19] total 46 [2022-11-25 23:56:51,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990726639] [2022-11-25 23:56:51,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:56:51,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-25 23:56:51,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:51,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-25 23:56:51,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=3701, Unknown=11, NotChecked=0, Total=4032 [2022-11-25 23:56:51,655 INFO L87 Difference]: Start difference. First operand 342 states and 375 transitions. Second operand has 46 states, 46 states have (on average 2.782608695652174) internal successors, (128), 46 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:25,423 WARN L233 SmtUtils]: Spent 25.72s on a formula simplification. DAG size of input: 190 DAG size of output: 122 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:57:50,932 WARN L233 SmtUtils]: Spent 24.86s on a formula simplification. DAG size of input: 205 DAG size of output: 124 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:58:10,922 WARN L233 SmtUtils]: Spent 19.32s on a formula simplification. DAG size of input: 200 DAG size of output: 126 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:58:30,105 WARN L233 SmtUtils]: Spent 18.77s on a formula simplification. DAG size of input: 206 DAG size of output: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:58:55,676 WARN L233 SmtUtils]: Spent 25.07s on a formula simplification. DAG size of input: 193 DAG size of output: 125 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:59:22,762 WARN L233 SmtUtils]: Spent 25.42s on a formula simplification. DAG size of input: 201 DAG size of output: 133 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:59:50,414 WARN L233 SmtUtils]: Spent 26.43s on a formula simplification. DAG size of input: 205 DAG size of output: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:00:04,096 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 162 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:00:07,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-26 00:00:28,122 WARN L233 SmtUtils]: Spent 19.85s on a formula simplification. DAG size of input: 142 DAG size of output: 139 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:00:31,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]